It's a great place! Comfortable overall and the amenities are excellent. It had probably the best shower I've ever used in Latin America - lots of pressure, unlimited hot water at any temperature. Though if you're shy, it could be a bit of a problem because given the right light conditions, pool-goers could conceivably catch a glimpse of you showering through the tinted windows...
Building staff were very friendly and helpful. The gym was great and usually nearly empty in the middle of the day. Only complaint there is the lack of a proper squat rack. Instead there's a very poorly-balanced Smith Machine that's doing its best to cause injuries. No dumbbells heavier than I think 20kg or something? Other than those two issues, it's a good gym for freeweights and general lifting. If you're a very serious lifter, you might have trouble finding enough plates. But you should be able to put together something like 160kg without much trouble.
Location is good. It's very quiet and calm most of the time, especially at night. You can walk to lots of great places, and of course the ecological reserve is great! Only maybe a 10 minute walk.
Don't have any real complaints!