Debbie, I basically work in Belmont, well in neighboring Redwood Shores, and I drive past the University on my way home, whenever I manage to make it into the office. So I can say that the area is residential and safe, and the campus seems very pretty although I have only driven by it.
Belmont is about 22 miles south of San Francisco, and maybe 10 mins south of San Francisco Intl Airport. You can get to SF from Belmont via Caltrain, and I did that commute for years. However, it might be nice to have a car in this area. Keep in mind gas is expensive out here, too.
I can't speak to the university itself, but I'm sure your daughter will know the rankings and can find out more info about her particular program as well as student feedback. She might look on yelp, there seemed to be some negative reviews and some positive, so that might yield some helpful info. Of course, you have to take yelp with a little grain of salt sometimes, as people like to complain, but it might be helpful to some degree.
Best of luck to your daughter!