Nursing Interview with ProMed Personnel

Ok so I have an interview with ProMed on Monday and was wondering if anyone who previously had an interview with them can tell me some info. I signed up on their website yesterday and I'm a new grad so I'm applying to places like crazy, but I feel as if I don't know anything on what they're about. Will they help me find a job? How reliable are they services? Somebody tell me something. . . Plz