Questions to CLer

Yesterday I was with the friendly one and after a test drive with the CLS 500 I got a second test drive in the CL 600. I would hardly have thought that in between there would be worlds again. The CL is already doing more than the CLS. Since I need only 2 doors for my new business car anyway, I came to the consideration to include the CL in my considerations. Now the questions to the CL owners among you: 1. What prompted you to make the decision in favour of the CL? 2. How much worries, in terms of defects has he already given you and was the solution satisfactory? 3. What motorization do you recommend to me?