As others have said, it's far from campus and now the parking situation is pretty shit for bigger games (I haven't tried LBJ parking/shuttle yet). Capacity is limited for the bigger games and post season. The concourse food and shop feel fine to me but the restrooms blow. The food truck set up is fantastic.
SEC teams have been complaining about the lack of HRs they are able to hit at DF, this is my favorite feature.
I preferred to play on field turf: no bad/funny hops to worry about, easier to slide on than dirt, no maintenance (probably less of a concern with dedicated ground crew but not the case for smaller programs (fuck tarp duty on windy days)), punk ass teams like Kentucky can't whip lines to crowd the plate, etc.
The biggest disadvantage I see these days is no legit warning track leading to some full speed wall collisions. They need to come up with a way to make the surface change on the warning track.
TL,DR - DF is fine as is but it could be better