Put it this way; I have ridden this for 1200 miles and I weigh from 80-ish kg to 66kg now. Everyday. In London. And in Surrey. Its still not broken. I dont think you can/should ask more from a £450 uber-light carbon frameset. Thats almost half the price of CAAD10.
^^ Just goes to show that the top frame manufacturer's can also fail in spectacular fashion.