Darby Park is a good serviced apartment/hotel across from KLCC Towers in KL. This hotel is designed more for business people who don't want the normal tourist type hype. The previous guy mentioned paying for broadband but probably didnt realise that all he had to do was go across the road and get it for free at starbucks. Everything is across the road and within 5 minutes walk. I also read about security being an issue. There was a $500,000 Ferrari parked outside this hotel and next to the lobby is a Porsche dealership with $4m worth of Porsches.
I doubt you would ever have any issues with this hotel.

The gym is massive and probably the biggest i have seen in any hotel during my past 60 stays at hotels globally. I got a 2 bedroom suite and only payed like $US1000 for 5 nights. This included breakfast on the 39th floor for 4 people. The room is perfect. nothing to complain.

Anyway if your a tourist you probably won't appreciate this, if your in business this is the stay for you. :)