B&K ref 70 vs. Sunfire TGP-5 which is the best?

Off the subjust but

Considering B&K want "BK" and ATI is still sorting things out. I would hold off on any b&k purchases. B&K did have some great stuff, but something like a REF 70 being so new in the product line. I would hate for you to run into problems and have little support.

Thanks for the advice. Do you have any thoughts, positive or negative, about the Sunfire system I'm using?
TGP-5 and TGA-7400