For Panther games we sit in section 136, side of the endzone at the visitor's tunnel. Love those seats. The free tickets we had for the ACC playoff game were in the north upper endzone. Quite a different perspective for the game.
However, before you buy ANY upper endzone tickets or PSL's, try the seats. At the ACC game, I was behind a frikken railing that blocked the end of the field opposite the tunnels from about the 20 yard line to that endzone. We were able to move over away from the railing, it was far from sold out. Apparently not every seat has a good vantage point.