If you're a new signer, it'll be a little rocky for you. If you're considering coming to this school, and you are already not a native signer, I highly recommend that you take some ASL courses online. Once you get here, you'll be put in some pretty remedial classes. I SHOULD have been more proactive in learning sign language before I came here, and now I have to take summer classes in order to graduate on time. It'll save time in the long run, trust me.
As far as the student body, I've never made it a real point to become real friendly with people, and part of it is due to my lack of skill in sign language. Obviously you have some A-holes because they're everywhere, but most of them seem to be nice. Though there are some hearing students, they tend to use sign, too, so PLEASE try to get some language down before coming.
The dorms aren't that great, and neither is the regular cafeteria food. Luckily for you, there's a couple other cafes on campus that might have better food. If you hate all of it, there's a ton of restaurants around DC, so you'll be fine.
The only things I really dislike about this school are the Financial Aid office and the dorms.
The FA office is really disorganized, so you might run into problems with them. The dorms are not that great, actually, most of them are pretty bad. Especially Benson Hall, which is the freshman dorm, I believe.
Try this place out at your own risk!