Good friend who is a VERY strong rider bought a one of the factory-direct carbon road frames from China and loves it. He used it for his successful
Everesting ride. Due to the nature of the challenge, there are some serious downhill speeds. He also used it for riding up Mauna Loa, etc. Same guy has posted a really good time at Dirty Kanzaa, been the first finisher in RAMROD and so on. I trust his judgement when it comes to bikes so I wouldn't hesitate to buy one if I was looking for a cost-efficient way to get into a carbon road frame and had the needed wrenching skills.