I'm currently on my second Puma, a 2011 2.4 and prefer it to the earlier models. The six speed gearbox is great and the clutch is not a problem at all. I like the dash layout, it's different at first but the layout of controls is much better.
I have driven a 2012 2.2 demonstrator for 24 hours and it was very similar, not any better than the 2011 though.
My 2.4 110 CSW does about 27 mpg average.
Cheers
John