Really cool looking location, love the red theme... feels fun, sadly the staff don't look the part (sure they waitresses are dressed up, etc. but they all look expressionless and bored out of their minds).
We have been here quite a bit after conventions, or while waiting for folks for dinner or other activities and it's a fun/cool place to hang out right up until the point you realize the service sucks, the drinks are only mixed okay and not outstanding. But if staying at the MGM the location is great especially if your in town for a convention where it becomes an easy meet up spot.
The music is cool and as others noted is loud but isn't overly obnoxious.
Other downsides are that it's usually packed, it has odd hours (opens late, closes early).