This is my second year doing post-bacc at PSU and my letter also definitely explicitly said I was admitted. mmsmith23, I would advise you to get in touch and ask for some specifics.
I've talked to some grad students who are very happy there, but I think it depends on what you are looking for. For instance, if you are interested in being part of faculty research, I haven't had the impression that there are that many opportunities for students to be involved. That being said, I feel like as a post-bacc here it is hard to get a sense of what the grad program will be like, because so many of our classes are taught by adjuncts. It seems like most of the faculty time is spent with the grad students, which would appear to be a plus. The faculty I have had the opportunity to get to know a little better seem very committed to the students.
I am definitely considering PSU, but depends on what my final results are.