5 star all the way except for the parking situation. For whatever reason, you cannot park your own car, you must use valet. Two of the three buildings at MGM Signature have lots that close at 8 PM, including the one for this listing. You cannot park at this building past 8 PM.
The neighboring building parking lot is open later but was full every single time I tried to park. At no point was I ever able to park on the property during my four night stay. Instead they have you park at the MGM Grand which requires you to walk more than half a mile, and wait in a line to get a parking validation. The parking situation here is incredibly lame, which is unfortunate since everything else about this place is outstanding.
If you don’t have a car, this place is great. If you do, I would think twice.