I'm an avid movie watcher and a truck driver so I visit ALOT of theaters. Grand Avenue has a great personality with courteous staff and owners not to stuck up to mingle with the patrons.
Just watched Red Dawn. Theater is clean, you get to eat while you watch, and they take pride in the theater. They don't let you put your feet on the backs of the chairs.
Great theater, but make sure you're in the correct seating. We didn't realize we were in reserved seating and there was no real distinction or anyone directing, so we had to move.