Pros:
(1) room was fairly spacious and recently renovated
(2) the wifi was free (Gold Passport member) and fast -- an important touch that distinguishes the Hyatt brand from Starwood and others, for me
(3) the gym is nice and it has some fantastic views while using the cardio equipment
(4) the food delivered by room service was very good
(5) laundry service was very prompt (clothes returned the same day)
Cons:
(1) very noisy - you could hear everything from outside the hotel (32 floors down from my room), everything in the adjoining room, and everything in the hallway outside the room. It was made worse by the fact that the hotel rooms' doors do not close gently, so you are awoken in the morning by a series of slamming doors in your hall.
(2) towards the end of my stay I started noticing small bumps that appeared to be bites on my skin (arms, ankles, chest), which I suspect may have been caused by an allergic reaction to laundry detergent used on my clothes or the bed sheets.
(3) the TVs are nice, but they offer very few high definition channels, and limited programming in general when compared to many hotels
(4) not a big fan of the soap/bathing products offered by the Hyatt chain
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