There was a similar post/thread a couple weeks ago with exact same amenities list in Rio Grand area. Poster never confirmed what the hotel turned out being then, maybe they didn't book, but the prevailing opinion of others was that this set of amenities was most likely Rio Mar Beach Resort and Spa. I'm kind of in the same boat, really hoping for El Conquistador but not for a few months from now. Good luck, if you do book this and find out one way or another appreciate if you could update this post with results. Thanks.