Bap Plus is arguably the best Korean place on campus.
I've eaten at Woori Jib and Arirang and despite the fact that those places are pretty expensive, the quality and taste has never been very good in my opinion and I've never felt like I've gotten my money's worth when eating there.
Additionally, Bap Plus is clean and has a cute interior (very similar to restaurants you'd find in Asia. A close comparison would be to Spoon House's decor.) Essentially, you go up to the register, pick what you want and pay for it then they give you a pager. You bus your own tables and get your own water/utensils. When your food is ready, you can go up to the counter, trade your pager for a tray with your order on it, then bring it back to wherever you're sitting. The plating is really nice and the presentation is simple and well done. You generally get a soup, some banchan (side dishes), and rice with your order.
I always get Tonkatsu! The portion is huge and it tastes delicious! (It comes with some sort of fermented radish, miso soup, rice, and a piece of tonkatsu bigger than a person's head with brown ponzu sauce.)
Pros:
Good portion sizes
Good food
Really good maintenance of the interior (not a speck of dirt in sight!)
Brightly lit interior
The tables aren't too close together and you can move them to accommodate more people easily
Fast service
Authentic food
Comfy seats
Cons (there aren't a lot, this is me getting super nit-picky):
There isn't a lot of variety. The menu has maybe 25 things on it and while those things are solid, I sometimes wish that there were more options!
There isn't a rug at the door so be careful of slipping if you're coming in on a rainy day since there's usually a puddle near the door