I have met those who haven't regretted it and those who have. It really all depends on what your expectations were when you showed up to class and what your expectations are after being here a while. That coupled with the timing of your arrival on property can make all the difference. So long as you know what you are getting yourself into and the nature of the industry and the way regional airlines do business, then managing your expectations should be a lot easier. Mesa's big thing is try do things as cheaply as possible. That will often explain the answer to the inevitable "why does Mesa..?" questions that come up.