I've been to multiple things at PPG, and what was Consol. Rock concerts have not been my favorite at this venue, seems like the reverb and echo is muddy.
For sporting events specifically hockey it is an awesome venue. Not a bad seat in the house, every seat has an awesome view of the ice. Coming from a city that used to have the Civic Arena is limited view seats, where you were literally parked by the 4 foot wide concrete pylon, this is an awesome change.
There's enough bathrooms, entrance and egress are smooth and easy even for the most crowded games. The box seats are lovely, and the closer you get to the ice the better.