About structure: The green aluminum alloy is my favorite. The six servos seem high quality, and I think their service life should be very long. The angle of rotation is very precise. I plan to buy some more such servos to make my robotic arm longer.
About hardware: The expansion board has interfaces for JetsonNANO, Raspberry Pi, Arduino and Micro:bit. That‘s a surprise for me. Even if only one controller can be used at the same time, I think this is amazing.
About AI technology: The APP includes all the functions and it runs smoothly. Although I had some problems in the steps of the servo calibration, the technical support staff helped me solve that. Yahbooom has strong product development capabilities and after-sales service is also very nice.