Another good Doubletree Experience
In addition to making great cookies, the Doubletree also stands out as a good overall hotel chain. This is the 4th Doubletree that we have stayed in across various areas of Canada/US and we are pleased to say that it will definitely be our hotel of choice moving forward...
Positives - Great location, right downtown and walking distance to several of the major attractions (Allan Center, Bayou Place, Hobby Center, Aquarium, etc). They also have a free shuttle service that will take you to most locations downtown. 
Negatives - As others have pointed out, the walls are a little thin so try to avoid being near the elevator if you can (rooms in the xx14-xx18 range). We also ran into a group of very loud (drunk) kids in the room next to us one night but security responded quickly and efficiently to quiet them down.