I'm rather interested in acquiring a Qing. From what I know they're fine bows. I'm not so big on fiberglass, but then again I have a horn bow and that's not that common. I see no reason not to purchase one.
Reading on ATARN will help you decipher the differences in bows and such, as it's a pretty complex deal. Every culture built their bows to a different standard based on that culture's needs, ideals and available materials. You'll need to do your homework to see what's right for you.