Ive taken several of my cars to BG for work, including the 240 and my last supra. I have to admit that Dan was very conscientious about the work they did. He even took time out during one of their dyno day's to help me get a tuning issue resolved. Ive heard the rumors about things going on there, but I honestly would doubt that Dan/BG itself had anything to do with it.
So no, I wouldnt rule BG out for doing any work for me.