I'm glad to see someone bought one of these. I think it looks great and wouldn't mind not having a rack or fenders since overall weight is what I want out of a portable bike. Carbon has come along. It really depends if the manufacturer is doing a good job, but there are probably just as many videos showing the crazy testing these frames have to pass vs frames that failed. In theory only carbon fiber has an infinite fatigue life. Some destruction tests; very convincing. I don't even have a carbon bike but will get one someday.
https://youtu.be/w5eMMf11uhM
https://youtu.be/20AG7tLxNto