My Pie is VERY good.
I've tried three of their specialty pies and have been happy each time. I'd say the Angry Bird is my favorite, followed by the Power Pie.
If I was an ASU student or worked at ASU, this would quickly become my favorite casual eatery to stop by. The wait is always short, the pizza is delicious, and the price is right. Plus they have lots of specials as part of their loyalty program.
As someone who doesn't work or go to ASU, I would say the only issues are the small dining area (it seems better when it's slow and there's lots of room or if you're taking your pizza to-go), and the fact that you have to pay for parking, either outside or in a parking structure.
Other than that, go enjoy some tasty pizza! YUM!