This is really an impressive place. It reminded me of being at a Hawaiian luxury resort--the warm weather probably helped. The hotel is about 30 minutes north of downtown & 15 minutes north of the airport. It is very large and modern, with a lots of great amenities an on-site PGA golf course, large and attractive conference facilities, an upscale spa, and a great water park, complete with a lazy river, a sports bar, and other amenities. There is also a nearby outlet mall with some good shopping.
I like this area of San Antonio. It is in the hills, so the setting is nice. It is a reasonably short drive to the Riverwalk, which is worth a visit. But the downtown area is a bit dilapidated, outside of the Riverwalk itself. The JW Marriott is in a much more attractive setting.
I'm very impressed.