It's literally a standing area atop Devaney, behind the seats and above another 10-12 foot wall. It's pretty far away from the action, you will not have anywhere to sit, but it's not a terrible place to see a match.
We did it for Michigan State game. No seats there, but not very crowded and it was still a good time. There are some benches against the back wall you can use to take a standing break if you wanted to, but they are too far back to have a view of the court.