Well, I haven't had much experience with the sales-staff yet. But I did go last night to look at the E90 and the salesmanager was very friendly and immediatly offered me a test drive without making me jump through hoops.
I have gotten my E46 serviced here many times, and they are very good in the service department, and are willing to put almost any repair as a warranty repair
They are a bit expensive though when your car comes out of warranty, but all dealers are I think.