Small room, poor housekeeping, disappointing
I haven't stayed at a Hyatt before but because this is the convention hotel for the convention I was attending I really didn't have a choice....I wish I did...
The room is tiny by American hotel standards. Barely 3 feet to the wall on one side, 5 feet at the foot of the bed and maybe 8 feet to the other side of the bed. The bathroom is so small that there is only inches between the toilet, wall and bath. A large person would have a heck of a time navigating in such a small space. 
Pulling back the covers on the bed I discovered several small holes on the bottom sheet and also a rip over an inch in length. The street noise, even 12 floors up is quite distracting as though they didn't realize that they were building the hotel in the center of a noisy city. The capper was that the small tray that holds the "amenities" in the bathroom had hairs in it. Not the greatest housekeeping....
Finally, I am very noise sensitive, I specifically asked for a quiet room, and it is VERY easy to hear normal conversations going on in the hallway and the room next door (seems to be coming from a poor seal between rooms on the window side of the room). Sigh! It will be a long 4 days being stuck here. Once I am gone. I am GONE!