We have 2000 E430 and have about 60,000 miles on it. So far, we had to spend over $9,000 on repairs ranging from A/C to differential leaks! It is a well designed and good looking car but the MB's quality is sub-par. Unless MB improves the quality, we won't be touching another MB for a long long time.
Look, power, and interior/exterior designs. Driving is fun.
Quality - build a car that does not breakdown every few months!