Awesome bike! I know everyone is hesitant to buy a Chinese bike, but China has come a long way in the technology race, it is no longer "cheap imitations". This bike is light, fast, and Aero, PLUS, you have a LOT of choice for a paint scheme, and let's face it, nobody wants to ride or own an ugly bike. I swear I gained about 2 mph(10%) over my 2016 bike for the same effort. My criticisms would be this. The bike arrives (almost ) fully disassembled. Only the hydraulic brake lines, shifters and handlebar tape are installed. Everything else needs to be assembled, like adding the rim strip to the wheels, etc. Directions are poor (only in Chinese)to say the least, and there are no pictures to help those that cannot read Chinese. The stem cannot be lowered more than 10mm without cutting the fork. Maybe this is standard with a carbon fork, I am not sure. The last "negative" item is that because the bike is so light, and has such thin walls, it has a tendency to magnify and echo any creaks or sounds, like the carbon spokes on the deep dish carbon wheels. Yeah, minor items to complain about, I know. As I said, overall I am VERY pleased with the bike, but I only have about 1500 miles on it so far.