Brand names vs. generic - my 5 cents' worth
Let me relate to you my personal experience with direct-from-China off-brands. For my B-bike, I tried a Pedal Force frame once, it was light enough, with some visual blemishes, but the deal breaker was that the right rear dropout was misaligned, so the only way to make the thing work was to intentionally bend the hanger.
Next was a "Venge" copy by Deng-Fu. This one is a bit better, still with visual blemishes, appears to be geometrically correct, but don't get it in the rain - the factory headset seals are nonexistent. The ride, although not bad, is not nearly as lively as the real thing, according to a friend who has ridden both.
My A-bike, in the meantime, is still the same 2008 Pinarello. It looks great, and does what it is supposed to do, consistently. What can I say, but to repeat the overused phrase, "the disappointment in poor quality remains long after the thrill of the low price has gone"?
To be frank, I don't really care too much about where the frame was actually made and how many times it was marked up in price. I do like the real warranty, the consistent quality, the beautiful graphics, and the up-to-date technology that comes with a high-end, brand-name frame. The sheer number of new headset and bottom bracket standards is daunting and probably unnecessary; some may say this is pure marketing gimmickry, but it is hard to deny that these newer standards represent a considerable improvement over the old-school headsets and bottom brackets in terms of lighter weight and greater stiffness. And let's not forget that the standards were not all that consistent in the "good old days", either - in fact, there is a plethora of obsolete, obscure standards out there.
So, my advice to anyone out there shopping for a new frame, go with what your heart is telling you, get the best bike you wallet will allow, and enjoy!