I bought a BD Mercier Aluminum roady 2 years ago, bike is still working great with no issues. And no, I didn't use the LBS for out of the box tune up, I did it all myself. Park Tool, Youtube and most of all, Bike Forums helped a lot on learning the basics.
They did screwed up my order though, but they compensated for it by offering free goodies or shipping it back for free. I took the goodies since I find the shipped bike satisfactory enough.
That's my experience with BD.