I test-sat a MS6 last night while waiting for my wife to get to the dealership. Personally, I can't see what the complaints about the interior materials are all about...it looked and felt fine to me. The 6-speed throw weight & feel was pretty unusual, I thought, but not bad. This dealership had at least eight MS6s sitting out front, maybe 10...I was a little surprised. None of them were marked down that I could see, though. They had a LOT of CX-7s, also.
I love the little changes to the 2007 Mazda 3 front end. That is just a nice looking car.