I'm an ex-RAHer. The best things about the place are NO JUNIOR MANNING and NO HOT RESERVE. For many other weaknesses, not many regionals (and even some majors!) can say that. I'm at a legacy now, and I've never been junior assigned (yet) but it IS in the CBA.

The pay is terrible, but most regionals can say that. Pay close attention to the progress of contract talks. Being a pilot on probation when a strike happens is not a good place to be.

You will know the certificate you're hired for no later than the beginning of day one of class, so if a particular certificate is a dealbreaker, you could walk out before you sign anything. (Historically, they've taken requests for certificate, depending on where the need is and the class schedule.) You will not, however, know your domicile until late in the training process (probably during the sim).

If you're going to work in the airline business, I strongly suggest you accept the notion of either becoming a nomad or commuting at least SOME of the time. Domiciles open and close all the time, ESPECIALLY at regionals. Majors aren't immune, either, though ... ask all those PIT-based US pilots, DFW-based DL pilots, etc. If you don't wind up spending a little time commuting, you're either EXTREMELY lucky, or you are moving around a LOT. If that's a deal-breaker for you, a corporate or 135 gig would probably be more to your long-term liking.

Personally, I've commuted almost my entire airline career (regional and legacy) ... the opportunity to be based at home is on the horizon for me, fortunately, but there are no long-term guarantees on any domicile at any carrier.