This airline is fine. You get what you pay for. The biggest plus is you don't have to deal with the bigger airport and lines. But don't be in a hurry. They will take off, almost get to your destination and then turn back around and go ALL the way back to where you departed from and blame it on weather, when it's not even raining or snowing. This happened to me going from Mesa to Ogden. It took 8 hours to get there (usually an 90 minute flight) and I don't know if that was the pilot or airlines fault, since ogden does have a shorter runway. But still not an excuse to not land a plane.
Other than that time it's been okay. Not the cleanest, there'll be finger prints on the windows and things like that. If you're going to fly this airline, don't pay extra for a seat. They have a tendency to switch planes and you won't get the seat you paid for. Just purchase the bare minimum and it's a great deal. And don't be in a hurry, other than the 8 hour late flight I've never had a late flight, but other people say it's common to have a delayed flight.