I started watching ASU games at Sun Devil Stadium back in high school - back in the early 80s. I've seen some of the greatest games in this stadium during Rose Bowl runs in the 80s and 90s (nothing compares to the site of goal posts marching down 5th Ave after OT win over USC) and Arizona Cardinals games. I've also been to the Coliseum in Los Angeles for USC vs UCLA football games and here's my thoughts on Sun Devil Stadium...
The stadium has evolved over the years but it's still the same classic venue it's always been, complete with bathtub urinals. Everything's asphalt around the stadium and it's quite a hike to the upper deck seats or even the top of the lower deck seats, especially from 5th Ave., as the entire stadium is built on a pair of mountains. C'mon, admit it! It's one of the coolest placements of a stadium... ever!
Worst thing about the stadium in my opinion is simply that it's outdoors. It's crazy hot in the "fall" when ASU starts playing and it's frigid (to us Phoenicians) in the winter, especially after dark with a breeze blowing in the upper deck. Brrrr! Spoiled are we with indoor Dbax and Cardinals stadiums.
This is certainly one of my favorite places to take my teen/preteen kids. They find the stadium very interesting, though they always whine about the hike up to the stands. College games are always a different experience than the pros. Very energetic crowds before during and after games.