The Marquee has the worst acoustics of any mid to small concert venue that I have been to and I have been to a lot of concerts.
It might work for some acts but for louder bands and Metal it is just terrible. There is no sound conditioning whatsoever in this place. They even had the stage right rear corner acoustic curtain retracted which made for HORRIBLE fluttering and echo effects. Even slower piano songs were echoing. Vocals were completely indiscernible even when the singer was simply talking to the crowd. I had to actually move to the stage left side to make it somewhat bearable. The fact that they had an acoustic curtain which was retracted and could have helped is just unforgivable. What exactly is the sound guy doing to setup the show if he doesn't setup the acoustic curtains? The ceiling is just a mess for sound anyway so there is probably no helping this place.
This place either needs a complete sound rework or I will never attend a concert there again. There are just so many better venues that this place probably should be torn down so that the space can be better used for something else and not destroy concert experiences.
It is considerably worse than:
Talking Stick Casino,
Wild Horse Pass Casino,
The Celebrity Theater,
The former Web,
The Dodge,
The Venue Of Scottsdale
The Nile,
The Rialto (and that is in Tucson...)
Perhaps only Nita's hideaway sucked more but that wasn't a sound issue.