Good Experience
I attended a conference in late September, held at this hotel. 
Pros: The staff were excellent, the property well maintained, the room clean and comfortable. I shared a room with a colleague, and the room was spacious enough that we did not feel cramped. The food service in the dining hall was good - not great, but good. The staff very accommodating. The central location of the hotel right on the riverwalk is one of the best features. I recommend this hotel, and will stay there again if I ever return to San Antonio.
Cons: The elevators were often very slow to respond, although they move quickly once you get in them. Our room on the 19th floor was overlooking the pool area and a large roof. Surprising amount of traffic noise.