We purchased a Mazda3 then 2 months later was happy but wanted a larger vehicle so we got the 6. I previously owned a Ford Mustang with manual transmission. With a move to a busy city I needed something that didn't required pushing a clutch constantly. The 6 gave me the best of both worlds, manual and automatic transmission without the clutch!
Audio controls on steering wheel, luxury feeling fabric on seats, traction control. Bose stereo system.
Turning radius is awful! Can't say how many times I have had to reverse and retry to get into a normal sized parking spot. Sunroof rattles unless visor is closed. Probably comes with the 2007 models but I wish it had 6 cd player with MP3.