Nice communication. Cool products
I've recently bought a robot arm controlled by arduino and it is nice. It was a gift for a kid that wants to start building robot electronics and he loved it. Some of the pieces are hard to mount so he needed some help but overall super fun experience watching him controlling the arm. The communication with the company was also nice because I have some doubts about how to mount few parts of the arm and they answered in les than 24h with pictures showing how it should look. Recommended company.