I attended a conference at this enormous facility for a conference and was not sure what to expect. While the service was very good, and the facility is a world unto itself in the sense that there are many restaurants and shops to keep you busy, as a hotel the place is pretty average.
The room was large but very bland. I was in a room that opened onto convention area and so I could never really open my sliding doors as people were walking by it constantly. The food was OK at best, nothing inventive but serviceable. The place is so huge that just getting from the front desk to the room involved a 15 minute walk.
I am sure if you are attending a show at the Grand Old Opry it would be a good option. Otherwise I am sure there are better options in nashville.More