I have had some great experiences and some awful ones!! The best was bmw, great service, professional and went through everything.
On the other hand my local mercedes dealership, couldn’t be bothered to offer a test drive, ignored emails and never had call backs. I definitely got a feeling like I was a second class person at Mercedes. I am contemplating making a formal complaint.
Think more of us should complain to the dealerships about poor service. Maybe the bad ones would then up their game!