This company is okay to work for to gain banking experience to further your career. The benefits & work/life balance are outstanding. To progress jobs within the union is fairly easy, but the pay for union jobs caps out at about 40k.
Unfortunately, to progress your career outside the union into what PSECU calls "professional" level is challenging. It is very political and networking is a key factor. Especially if you are a white male. If you are a cute female however you will have no problem advancing your career within the credit union.