I love the Overture Center! Being a braodway and ballet fan I really appreciate the wide selection of shows available year round. Some of the ballet are even choreographed and performed by our very own Madison Ballet Company ~~
There are multiple concert halls in the Overture Center, though I have only been to the Overture Hall. The seating arrangement and sound system are well-designed, as expected. Regardless of where you are seated, you get a clear view of the performance below (or above) you. They clearly mark out the few seats with limited view, so you know what you are getting into before getting those tickets.
On most occasions rush tickets are offered. Do keep a lookout for those as you can great seats at superbly awesome prices. The best way to be kept in the loop is to sign up for e-mail notifications, especially if you are a student since they offer great student deals from time to time. But note that most rush or special promotion tickets are in-person only, and you have to pay in cash. For student specials, a student ID is required, and each ID gets you two discounted tickets, so you get to bring a friend along.
If you arrive at the show early, grab a quick bite or take a quick walk at the surrounding shops along State St, or visit the shop at the Overture Center for some nice souvenirs, then sit back and enjoy the experience!