Overall this place needs more seating.
This place is more than just a food stop though. On the first floor they have a game room, very lackluster but if you're easily entertained with ping pong you should be fine. Furthermore, on the second floor they have a student lounge, a computer lab, and many meeting rooms of which you can reserve.
The busiest time here is lunch. The union is equipped with a jamba juice, starbucks, metro pizza, subway, panda express, taco bell, and a new sushi place. So they do have a nice variety.
Seriously though, if this place was bigger I'd bump it up to four stars. I don't mind this place being loud, but I do mind if I can't eat my food without being bumped into every second.
Pro tip: Microwave & free scantron at the front desk. Oh and tax free if you use your rebelcard. So load that baby up with $$.