Location Location Location
Just back from a 4 night stay at the Belvedere and would struggle to find fault. i read the reviews before I went and was a little worried by comments about the heating, showers and noise but the reality was far removed from these.
We stayed on the sixth floor at the front just in front of the lift and can honestly say we were not disturbed at all. Yes, there was some noise from the street, but this is central New York - what would you expect?
There was no problem with the heating and unless you are some kind of dummy the shower is simple to use. 
Bed was one of the most comfortable I have ever slept in, staff were very friendly and helpful but the best thing about this hotel is the location. Turn left and five minutes you're in Time Square, turn right and two minutes to Hells Kitchen.
I would recommend this hotel to anyone.