I loved this place...and you will too.
You can rent a Trullo in Alberobello Italy. My rate was lower, because it was off season.
When I arrived by train I walked to the office of Trulli Holidays.
It was not too far. NOTE: There are no taxis that I am aware of.
The staff (Francesco) was super. He walked me to my Trullo....about 10 minutes by foot.
You can see my photos below. I stayed two nights. My trullo was comfortable, but be aware...Trullo #10 has a small bathroom...and I DO mean small.
Everything else about it was fine.

The room was clean, and there was a mini fridge (honor system) in there.
For breakfast I walked to a nearby coffee Bar, which is either owned by the hotel or just does them this favor...
It was great.
Be prepared that hardly anyone speaks English in Alberobello.
That is fine with me, because if they did...it would seem too touristy for me. The rooms are well with-in walking distance to everything.

We booked a small trulli for just one night. The price was really good! As there were other trullies available, they upgraded us to a bigger one (with no extra charge!).
It was a clean, confortable and very cute "room" (it's rather an apart-hotel than just a room). The kitchen had all the necessary tools to cook so we didn't miss anything. We were not expecting to cook but we did.
The girl in the reception (besides being very pretty) was incredibly helpful with everything, she also helped us by checking train timetables and giving us free access to Internet.

If I ever come back to Alberobello, I would definetely stay again in a trully because I know I can trust TRULLY HOLIDAY. I recommend it to everyone rather than a standard hotel.