United has a similar CPP program with a Commutair and Expressjet. I have seen the eligibility requirements for the CPP and they are pretty stringent, but not unreasonable.
If you become ineligible for the CPP for whatever reason, at least you are still building turbine and 121 time at one of the regional partners which will leave more options open in case the CPP doesnt work out.
The salary at ATCA is quite good. A friend of mine worked at ATCA and averaged about 700 hours per year. Salaried employee.