I spent a year studying here while in college. Great Korean language classes and plenty of places to get around the Anam area. I lived in the dorms, which did not allow boys and girls on the same floor...thought this was college! You can always get an apartment in the area if this is a problem. But other than that, it was a fun place to study.
Be sure to check out some of the local things in the area. Bubble tea was good and icecream/jelly filled waffles. There is also a good number of bars that the international students went to in the area.
If you are just looking to visit, be sure to go to the underground plaza and enter some of the buildings. The campus is spit into two major areas which are kind of diagonal from eachother.