I just racked up 1,500 miles on a loaner while my ML was in the shop. The GLK I was using had the 20 wheels and some other goodies. I enjoyed every mile with that car. I'm a big guy,6'5", and I was able to get the memory settings in a comfortable spot. Sometimes I spent as much as 4 continuous hours behind the wheel in varying situations from turnpike to city driving ranging from 25-70 MPH. Other than being a little smaller than I would like, it was great and I would not hesitate to buy one. I'm not sure I would give up my slightly larger ML for a GLK, but I liked it nonetheless.