Loads of threads on Publish America and why it's a very bad idea, but, in brief: PA charges, although not up front. They often turn out a poor product in terms of typos and binding, and if you edit yourself (or pay), they'll turn out typos anyway. You most likely won't recoup your losses, and if you do it will be very little. They are not considered a publishing credit by other publishers or agents. You will lose your book for 7 years for nothing. You'll be supporting a scam. If you protest any of these things on their writers' boards, your message will be deleted and/or you'll be sent an extrememely arrogant and deceitful "tone letter" and/or you'll be banned but they'll still have your book.
Very bad idea. BTW, welcome.