The headset works very well. It is necessary to blunt the sharp edges on the headset so that the wires do not spoil. I wrote to Jean, they promised to fix it. Very convenient, the steering wheel rotates easily, by a large degree.
I've almost finished assembling the bike. The battery is attached with 4 bolts to the frame. There is no bracket on the frame, only holes in the carbon fiber. Also, 2 bolts for the bottle holder are attached to the battery through the frame.
I'm glad I bought a CEF50. And I did not wait for LC. Dengfu's promises not to rush to release the frame, most likely they realized that they were not in trend.