Allow me to add some perspective for those who think TSA is a better option.
TSA are getting 50 seaters, which won't stay flying for many years. That's not to say that they won't get new airplanes in the future, but their trend is 50 seaters. About half the pilots that currently come to PSA have past 121 experience and are actively trying to get hired by LLC/mainline. I think it's safe to say that attrition is expected to increase in the coming years, for reasons mentioned above and industry trends. Management (for what it's worth) are saying that they plan to continue current pace of hiring until the end of 2016, they sure act like it. Taking into consideration attrition, airplane options, and increase flow, that sounds about right. Even at the end of 2016 I find it hard to believe that hiring will come to a halt. It will probably just decreased by half which is not bad at all
I think PSA is a great place to come to, especially if you don't have 121 time. By the time you'll get your 1000 hours you should be a few months from upgrade.
Since this is my second 121 operation, I can tell you for a fact that this contract is not bad at all. The SAP provide pilots control on their schedule, something that most regional airline pilots simply don't have. Also in the next few months, once American and Airways complete their merger, management need to sit with the pilot group and renegotiate the flows.
Just my $0.02