Hiring runs the gamut. In one recent class there were 3 regional airline check airmen (definitely hirable anywhere). What Gemini do want, though, is people who will stay a while. Whether it is because due to age or qualifications they are unlikely to hire on elsewhere, or because they have a strong interest in doing the kind of flying Gemini does. For those of us who came from the regionals, it was all about quality of life, as the home basing means NO COMMUTING, and not having to spend almost half your "days off" getting to and from work is worth a lot.
Also, and this is a calculated risk career move, should the stated intent of the new owners to grow the airline come to fruition, and crew attrition continue (F/Os especially) at current pace, an upgrade within 5 years or fewer is likely. Big IFs, there, though. Same goes for a contractual improvement in pay in a couple of years. Base your decision on QOL.
Do you want to fly for a company that treats its people pretty well, have reasonable time off in long chunks, see the world, and fly big, modern, well looked after but not necessarily shiny jets? Can your loved ones stand to have you away from home for over two weeks and for the occasional month at a time (perhaps that's what they want!)? Is Gemini enough of an improvement over your previous job that you're not going to wait until that call which may never come from a legacy, Southwest, UPS, etc.?
If you can answer an honest yes to all these questions, you'd probably be happy at Gemini. But if you do come aboard, stick around a while, yeah?