I've been here twice for their Broadway shows (Thank you Lindsey and Yelp!) and I really like this place. I sat on the first tier both times and could see and hear everything. The theater is not too big, the seats are large and roomy and I love that there is enough space between rows for people walking through. I'm not sure if they don't allow you in after the show has started, but neither time were there people walking in front of us at the beginning or after intermission.
It seems to be pretty easy to find discounted tickets for most shows here as well, I've seen them on showup.com, travelzoo.com and maybe even the ticket website. One of the best parts of seeing shows here is FREE parking. There is a lot right outside the building, but both times we used the parking garage that wasn't even 2 blocks away. Easy in and easy out.
I didn't use the bathrooms during intermission, but after the show there wasn't any line at all.
I just bought tix to see Fiddler on the Roof here in the Spring, I think my Mom and her husband will love it!