I went to the Wolf Den for a Marc Rebillet show. I arrived at 6:30 for an 8:00 show and a line was already formed. Go early, for big shows, if you want to be sure you're in and have a seat.
We had the option to sit or stand on the floor. I chose a seat - there is not a bad seat in the place and you can see the show from outside the venue. The seats are a little small but, comfortable. If you want a booth, you'll have to reserve it prior to. If you choose to sit, you will not be able to then go to the floor.
The staff was organized and kept things orderly. There was beverage service and I easily received what I wanted.
PLUS! all the shows are free. Such a great space at Mohegan Sun and a fun place for Connecticut.