1. I second what everyone says about the cup holder being too small. I think it was made bigger in the -900.
2. Dual FMS - I think some back problems I was having were being caused by my short arms tryign to reach way over to the left side to program the FMS.
3. Ceiling is low (floor too high?). I think that was fixed on the -900 also. Or for some reason I didn't bump my head into the switches as much on the -900.
4. Yoke clip looses tension too easy and the checklist falls on the nasty floor.
Does any of this really matter when the autopilot can barely intercept and track a localizer and randomly turns off, changes speed bug, etc?