I picked one up last month for $29 and I agree in principle its a good idea but as they are made in china the quality is low. It works similar to the early stigma, the adjuster on the top changes the throw of the machine from long to short but it does not have a way to adjust how hard it hits. I have not tattooed with it but I used a Chinese Stealth to build the first prototype of my current so it might have some use.