I currently work at IJAS and have found it to be a pretty decent company to be with. I have very few complaints, which of course you'll have at any company you work with. My QOL has been pretty good - I've averaged 18 full days at home and 25 nights at home each month over that past year. Pay is pretty average to start for a 135 company (around $25,000 + PD the first year), but can improve after your upgrade. Upgrades vary based on experience and run anywhere from 9 months to 2 years. Seniority is rarely a factor - if you can fly the airplane, do your job, and have a good attitude, you can upgrade quickly (based on need).
Training is one of their weaker points - they do not have the money to send every pilot to FSI for initial and 6 month recurrents. You will get FSI or Simuflite for upgrade, but inhouse recurrent is the way it's done. Initial is about 2 weeks, including the checkout flight. 1 year contract for FOs, 18 month contract for captains. You will get fully trained in the beginning, but a lot of the finer points to learn come from OJT. We captains try to be sensitive to that and continue educating in the cockpit.
Mx is good - not the best I've seen, but good. We've had problem areas, but that's age of a/c. I have never been asked to cut corners or do anything illegal, and they are responsive when you have a writeup. IJAS has never had an accident in 27 years, so that says something about mx and crews.
Right now, we have 5 a/c you'll fly on charter (3 LR-35 and 2 LR-55) and 2 LR-25's for a full-time air ambulance service. We also have 3 other LR-55's that have dedicated crews for the respective owners, but you can substitute in if someone's on vacation. We also manage a couple of other aircraft that you'll never fly at present.
The old policy was a half-hour callout, but that's changed to 1 hour callout, but they want engines turning in 1 hour, so you still need to live fairly close. There are lots of living options to satisfy your budget (if you remember that Denver overall is a pretty high cost-of-living).
If you want to fly jets and have a pretty decent QOL, I recommend it. It's not a career destination, but good to hang out for a while and get some good experience. You can make a lot of contacts while at APA if that's where you want to stay.
Feel free to PM me with specific questions.
JS