I have been to Cu's stadium three or four times including for CU-CSU game. It has a nice setting (much better than say LSJU's stadium's setting), but it's setting is nowhere as nice as the California Memorial Stadium with green hills ad mountains on one side and Bay, San Francisco and Golden Gate Bridge on the other side. If you don't believe me, on a clear day go to to the top of the Eastside of the Memorial and behold one of the best views in the world (from right to left: Marin County, Bay, Golden Gate Bridge, Pacific Ocean, SF skyline, Bay Bridge, Peninsula, more bay, San Mateo Bridge, Oakland skyline, how can you top that).
On the other hand, I have NEVER seen so many underage drunk people in one place as at the CU's stadium during CU-CSU game!!