I went there with friends for a special event and then had the opportunity to come back again a few times after that. It's a nice bar area in the middle of the Hard Rock Hotel and Casino.
First, this place is located east of the strip so it might be a little annoying to get there due to traffic depending on what time it is and where you're coming from. Parking should be easy at the Hard Rock Hotel parking lot and they didn't announce any plans to make it paid yet.
Most of the people you will see there will be tourists unless there is a private event going. It is more of a lounge so don't expect many people dancing or anything.
I personally like the decor as it was recently renovated. I had cocktails many times and I must say that they were decently good. Service was good and you expect good looking girls dressed up depending on the occasion (Christmas outfits, etc...).
In conclusion, I would say that this is a pretty good place to hang out but stay on the strip for the craziest bars for sure. Feel free to message me for any additional details that you may need!