I really enjoy seeing shows at the Knight. The theater itself is beautiful, with good acoustics. Some seats are better than others, of course, but I don't think there's a truly bad seat in the house. The only downside to the facility is that the lobby can get a little cramped: it's shaped like an "L," and people tend to stay on one side without expanding around the corner. If they did, it wouldn't be as difficult to navigate.
Parking is cheap! We only paid $5 the last time we saw a show. The light rail is easily accessible as well.