I have a 2009 Gli and a 2012 Altis, there's a huge difference:
1- The base of the older one is around 20 inches, newer is 19 - Less support for legs making it rather uncomfortable
2- New one sits much higher giving you less support, and the base is at a wierd angle throwing you on the wheel - once again very uncomfortable
3- The curve in the seat back is either different or the base is sitting high, so again, makes it very uncomfortable!
4- The headrests have play, try moving them back and forth.
Other differences in the face-lifted version:
A. Suspension is worse: Car is stiffer, jumping over potholes and irregularities at city speeds, and also gives more clearance for no reason since the previous one was already very high!(about 1/4inch in the rear and 1/2inch in the front)
B. Rear arm rest is almost impossible to close unless you shove it with excessive force
C. Driver side sun visor will not close properly
D. Exhaust resonance creates a rumble in the cabin between 2000-3000 rpm, which is extremely frustrating!