One of two of the sounds are good, the rest I would struggle to find a use for
My favorite sound of the bunch here is the one labeled firelyre. It sounds the best and I use it the most. The other ones I don't see myself using even if they have their charm.
If I didn't have any other grand piano sounds or wanted to recommend one to a friend, this would be an easy recommendation. High quality recordings, sounds like an actual instrument thanks to the character of the room, and the binaural effect gives it some interesting character.