If you have Lint, then you are probably in the general ballpark. III is a general progression from the "On the Verge" cd, though maybe a little more AOR than they have been before. They haven't changed too much from Lint....only gotten better. They really started to define their style on OTV. It's not Journey-ish the way The Storm/2 Fires/Hugo are though, IMO, but once you "get" their sound, it's a really good cd.
As far as the Perry vs. Augeri stage presence issue is concerned, I think Perry is more comfortable (no doubt due to years of touring), but Augeri is getting confidence. He's gotten much better each time I have seen him. His stage presence was best on the new songs from last tour--obviously because he didn't have to compare with Perry on those--so he should be right at home this time out now that he actually has a cd to call his own.

Kevin