Wonderful Location and Service
The Hyatt is located close to all of the great attractions and is a lovely hotel. I didn't have any trouble with thin walls, but it is gigantic. There's a lovely "Lagoon" area below the main floor, and the food is pretty good through room service. The beds were lovely, and while there wasn't much of a view, the location makes up for it. The sheets and towels can be changed daily if you request it, but they are trying to conserve water, which is fine by me.
What I surprisingly did have trouble with was that the first morning I woke up with mosquito bites all over the one arm that was outside the blanket. I'm not kidding. I have no idea how that happened, as I hadn't been out of the hotel at all (I was at a convention). Perhaps the guests before me brought it in on their clothing or something. Unfortunately, I'm allergic, and didn't have anything with me, so I was miserable for the other three days of my stay (wasn't prepared for that, so if you have allergies of any kind, travel prepared!). The hotel quickly changed my room and offered me a credit for room service, which was nice. After that I had no problems.
I offer four stars not because of this odd event, but because it is a very expensive hotel.