I used the facilities at the YMCA a few times during my recent stay at the Hilton next door. I appreciated that hotel guests got access to a full-sized gym instead of a dinky hotel gym. I found the layout of the YMCA to be cramped and a bit uncomfortable. Everything is so exposed and I prefer gyms with a few nooks and crannies where I can lay on the floor and exercise in semi-privacy.
The hours make sense for the office environment but I really wish it would've stayed open later than 9pm.
I found the cardio machines to be in excellent shape and I enjoyed watching Law & Order, SVU while sweating on the elliptical (go ahead, make fun of the fact that I like ellipticals).
The best part of the YMCA is how clean it is. There is cleaning spray and a towel stationed at every machine and I noticed that people were very good about cleaning up after themselves.