I've been to a lot of different venues in my concert going career and I must put the MGM near the top of the 'arena' sized venues.  I went to the Police show last Friday and was really impressed with the acoustics, the sight lines and even the seats (they had a little rocking action to them)  My biggest gripe-they stopped serving booze at 10pm. 10pm! I thought we were in Vegas, not Salt Lake City.