The stroke itself works well. I have two of them already for years on PCs in use and can not complain functional. Unfortunately, after a few years, the surface rubber is tacky and dissolves. They can then rub them off and then has a hub in black piano lacquer finish.
Also in conjunction with the Raspberry Pi, the stroke is working fine. It is also possible to provide the Pi through the hub with power, so that he does not need its own power supply. At least for me, this configuration was stable and easily.