My wife and I stayed there for a couple of days on our last trip to Vegas. We stayed in the Casino/Paradise tower, which is the old section of the hotel. We were in room 941. The room was a nice size, but the bathroom was REALLY small. They could have made better use of the space. The bed was comfortable, and it was nice to be able to open the doors to the outside and let fresh air in. Everything seemed clean. The pool was nice, but going there in March, there wasn't much going on.
Both my wife and myself have tattoos, and we felt like we fit in better at the Hard Rock over any other hotel we have been at.
I would recommend it to anyone, and the next time we stay there we will be staying in the new HRH tower.
We went to the spa in the HRH tower, and it was very nice. Everything you could ask for. Just make sure you take swim trunks so you can go in the Roman waterhouse section.