I agree with using an independent if you have an older car.....
...but there are two areas where thats gets sticky.
1. If you have one of the newer much more complicated cars with all the electronics...the independents don't have the equipment to diagnose
2. If you don't live in a large benz driving area where the market is ripe for good benz mechanics then you could be at a loss for someone you can trust ....I am now in Columbus Ohio.but a few years ago I lived in Dallas and the amount of Mb's on the road as well as good techs was amazing there as compared to here
1992 300SD 129K