Stayed at Planet Hollywood for a convention, and it was perfectly fine. Not exciting, not all that interesting, but clean. I did hear others complain that the staff is not friendly or polite, but didn't experience that myself. The Planet Dailies restaurant is actually really good for breakfast and easily accomodates a large group. I also very much liked the fact that it's attached to a mall with some decent shops, which also helps you hunt down that elusive bottle of water or soda with ice, which are in short supply in the casinos (or way expensive). I might stay there again - but only if I didn't plan to spend much time in the room.