This is a great place for Froyo on campus [and really the only place I would consider getting Froyo on campus]. Located right across from the Alma Mater, it's in a great location although it can be a trek from some dorms.
The vibe is very bright. Lots cute details all around the store. The college kids coming in and out of here make it a very vibrant place to be.
Onto the actual Froyo. Tons of great choices both in terms of the actual Froyo flavors and toppings. Toppings are always fresh and taste delicious.
Really my only complaint here are the prices. The Froyo is good, but good enough to justify the premium on it? I don't think so. I've been to places in Chicago and the suburbs with similar pay-per-pound pricing schemes and almost all the places I have been charge less than Cocomero. When I'm at Cocomero, I always have to get less than I actually want, because my freshman year, I once made the mistake of spending over $10 on my Froyo. Oops.
So yeah. Good froyo. Good location. Just make sure you don't go overboard and you can stick to your "broke college kid" budget.