Never stayed there ..... not my thing really. Would suit the guys like BigD who want to spend time at the Q-Bar etc in that area behind Sukhumvit.
There seems to be a fair number of properties going up in the area from Sukhumvit 9 up to 25 so its worth keeping your eyes open for deals on some soft openings.
If you don't mind being down Silom way (10 mins to skytrain and subway), this place has just opened and at around 1,600 Baht for a 40 sq m room it appears to be great value.
http://cksuite.com/aboutus.htm
I stay at The Somerset Lake Point on Sukhumvit 16 these days when I am in BKK (I am currently there). 2k for a suite (upgraded to a 2 bedroom apartment). Certainly the best value-for-money place I've come across in the past few years.