The layup of the O2 VAM was pretty impressive. And if we accept the documentation regarding the VAM, a variety of different types of carbon were used, each with a specific purpose depending on location. A very sophisticated application by the standards of the industry. And it's all on display. Not many manufacturers will show their full carbon layup. Most throw a cosmetic layer on top for appearance or hide certain areas with a fade in black paint. It is quite obvious that a lot of effort went into getting the various sheets of carbon just right, and you could see all the areas that had been reinforced with various different weaves. The reinforcement around the delicate brake bridge was impressively tidy. The inside of the downtube was immaculate with the smoothest inner surfaces I have ever seen, and as well I have never seen a better formed head tube and in particular the bearing seats. The fit of the headset bearings was absolutely perfect. The bearing seats in the bottom bracket shell, while a bit too minimalist for my tastes, were round, parrallel, and perfectly in line. Did not look "cheap" at all, rather it looked like an incredibly expensive frame to manufacture given all the handwork and attention to detail. That's the great shame here, I think but for a bit more stiffness, it would be a special bike.
As for my new O2, I have yet to find a flaw. While made with less expensive carbon and more of it, the quality of construction appears similar to the VAM, BB, head tube, disc caliper mounts, all perfect. And the paint is flawless, can't find a ripple, bubble, or spot of overspray.
Please explain what you mean by not very sophisticated. What do you feel Factor makes that is "cheap stuff"?