I just got back from a wonderful family vacation in this fabulous city. My husband, a frequent traveler, loves the Sheraton brand, and this is why we chose to stay at this particular hotel. It turned out that we were able to book 2 adjoining rooms using points, so please keep this in mind when reading my comments.
The hotel is very conveniently located just a block away from Calle Florida, a very lively pedestrian street full of shops, cafes, and street vendors and performers. Taxis were always available except for on New Year's Eve (see below), and across the street there are several banks and a pharmacy. Several cafes where you can have breakfast are located very close by. We did not use public transportation, but noticed that many buses stopped right at the corner. Other reviewers mentioned the other Sheraton hotel in Buenos Aires, but the Libertador is much more conveniently and centrally located.
We were promised 2 adjoining, non-smoking rooms. That is exactly what we got. Upon arrival, 1 room was ready and we were able to freshen up there before stepping out to explore a bit before official check-in time. The check-in process was smooth, easy and friendly. We were also given a late check-out, no problem.
The rooms had refrigerators and flat panel LCD TV's. They had recently been updated and renovated, so the condition was very good, clean, modern and spacious. The bathroom was above average in design and, in particular, the shower head was one of those rainforest type fixtures- very nice! The rooms were located on the 16th floor, which is considered their club floor, although there were none of the club floor amenitiies that are usually offered at other Sheratons. There was little or no street noise even though the windows faced a very busy street, Avenida Cordoba.
The hotel itself has a pool and small gym, but after the first day we really didn't have the time to use them.
One serious problem there was with the elevators. Out of 3, only 2 were working, and I got stuck in 1 of them, so it was only kindof working. The hotel was full and very busy. The Australian and South African athletes participating in the Panamerican Games were staying there during our stay, so there was a lot of action throughout.
Before leaving for the trip, I had tried to contact the concierge by e-mail, but never got a response back. While there, all of our concierge related questions were answered by the front desk staff. I may be wrong, but my impression is that the hotel had no dedicated concierge working, at least not during our stay. We were even given some wrong information concerning reserving a car in advance for New Year's Eve- we were advised that finding a cab would not be a problem, only to find that there were no cabs, cars, drivers, etc. to be found anywhere! By some miracle, we were able to stop a cab going by and the very nice driver even agreed to bring us back, showing up promptly when he said he would. Every driver we had after that told us that it is a well known fact that taxis are scarce on New Year's Eve in Buenos Aires. We were inconvenienced by this misinformation, and if the hotel staff had been better informed, something like this would never have happened.
So, my advice to anyone considering a stay here- you can expect friendly, welcoming staff who are still developing their ability to deal with a very heavy tourist clientele, and a generally comfortable and well kept property that is very conveniently located.

This is somewhat of an unusual Sheraton property. It's an older building that is being renovated into almost a boutique downtown property. It is MUCH smaller than the nearby Sheraton convention center property (indeed, give your taxi driver the Maipu & Cordova cross-streets, or he might take you to the wrong Sheraton!). The front desk staff, while not perfect, speak good English and try to please.

The location is very good for tourists, right off Florida and a few blocks from the subway stations (somewhat more useful now that taxi fares have gone up and a subway ride still costs only 70 centavos). The Argentine economy is improving from the crash of about 6 years ago, and downtown Buenos Aires (Centro) is rebounding. The area is no longer filled with homeless, and petty crime seems to be down. So staying in this area is not a bad choice.

The renovated rooms are very nice, although work is still ongoing at the property. During my stay, work on 1 of the 3 elevators led to occasional long waits.

The Starwood website sometimes offers good deals on this property, so look for specials. If you get breakfast included, the buffet on the 3rd floor is quite pleasant. Of course, there are so much great, reasonably-priced restaurants in Buenos Aires, the last thing you really need is a breakfast buffet. If you're looking for a light meal for breakfast, consider the 10 minute walk to the Cafe Tortoni for a croissant and old world experience.

I was not sure what to expect with a lot of negative reviews, but I pleased and had a great stay. The hotel was very nice and the hotel staff was helpful and most spoke english. We stayed for 8 day and had no problems at all. The room was nice size and very clean and was just
remodeled. The pool was nice and the fitness center and sanua was a plus too. We were on the 18 floor and it was very quiet. The location was great too close could walk to a lot and there were 2 subway stop close. And very safe place too. There was one way in and one way out and the doormen knew who was coming and going. There is a great restaurant close "La Chacra" right on the same street Av.Cordoba, GREAT STEAKS. And if you plan on going to Uruguay Buy your ticket days
ahead because the can sell out. Another great time was spending a day at Cabalgatas riding horses on ther ranch a must do. Check them out at [----]. Ana the owner was a lot of help, they will pick you up and drop you off at the hotel.

I will stay here the next time I come. Also keep alert in La Boca and San Telmo a lot of pickpocketer, my camera was taken right out of my backpack while on my back.

My partner and I stayed in this hotel because we had to vacate the apartment we'd rented for a month in Buenos Aires and our flight back to Mexico didn't leave until 3 am.

We arrived at around 11 am, well before the 3 pm check-in time, and our room was not available. We checked-in and they held our bags, inviting us to wait in their lobby/restaurant area. I wanted to use the Internet, and was prepared to pay the standard fee to use it, but I had to know the room number we'd been assigned in order to be able to connect. When I asked the helpful young man that checked us in, he gave me a slip of paper with a password that granted me free access. That was very nice. It was good for 24-hours, so I didn't have to pay for Internet access the whole time I was there.

At 3 pm, we asked if we could go to our room and we were told that it was not yet ready. They offered us a free drink at the bar while we waited. They said they would notify us when the room was ready, and at 4 pm, they did. This was a little disappointing, because we were not even spending the night in the hotel (we planned to leave at around midnight to go to the airport), and we could have used the hour we lost to nap a bit or pack our bags a bit more efficiently.

The decor of the room was lovely. They are in the process of remodeling, and we were given one of the remodeled rooms. The web site claims that they have walk-in closets, but they're only walk-in closets if you're Calista Flockhart. The water pressure in the bathroom was exceptional, so much so that the water in the bidet shot up to the ceiling upon turning it on. The shower had a rain-style showerhead (not my favorite), and the 'bathtub' suffered from the same ailment as the 'walk-in closet:' you could actually fit in it if you were perhaps only four feet tall.

These things didn't ruin the room for us, but they were a bit odd. It seems like the renovation designs have been done by an amateur because things are not very well thought out. Pretty, but not well-planned.

The worst thing was how hot the room was. We were there for nearly eight hours, and we had the air conditioner cranked the entire time. The vent was blowing out slightly cool air in a trickle, but this didn't cool the room one bit. We went out and returned from dinner, and when we walked into the room from the corridor (which was a comfortable temperature), it felt like we were walking into a sauna. This made us very glad that we were not, in fact, sleeping there that night.