Well, my impression of the place was favorable, but there were some trouble spots. The aircraft are the best I've seen as far as trainers go. If all goes as planned with their transition to the CRJ-based training, I think the PACE program is one of the best opportunities for a 300 hour commercial pilot. I can't say the same for the ab initio program, however, since I don't really know that much about it. From my limited knowledge, I don't really think it would be that great a deal considering the astronomical cost and the fact that you only get an associate's degree out of the deal.
Anyway, back to the tour part. Although I was quite impressed with their equipment and the PACE program in general, the staff did not seem very helpful, organized, or even that knowledgable about anything. I drove 13 hours to tour the place, had an appointment, and was met by a "tour guide" that was a first-semester ab initio student that had no knowledge of the PACE program at all, and little knowledge of the rest of the operation. All he did was show me the sim room, the dispatch area, and the planes. I then spoke to a CFI and asked about Mesa Airlines' hiring/interviewing situation and what bases most people were getting. No luck there either. He didn't have a clue.
Finally I was able to speak to the chief pilot and he was extremely helpful and knowledgable about everything. If I had not visited with him, I would've left very pissed off. He was able to tell me about the whole RJ program and what to expect from the entrance interview, course workloads, etc. I also was surprised by his honesty and sincerity. For once I wasn't getting a huge marketing pitch, but instead was treated respectfully and had my questions answered directly without a lot of BS to sort through. This carries lots of weight in my decision also. Honesty is becoming increasingly hard to find in the flight school industry.
Overall, my impression of the place was good enough that unless something changes, I will be doing the PACE program in Fall 2003 and I will hopefully have a regional job building quality turbine time by spring/summer of 2004. Much quicker and easier than the CFI route, especially since my heart really wouldn't be in instructing. Good luck with whatever you choose.