I bought this device a little while back and love it! I'm not a professional detailer so I can't intelligently answer your question based on any knowledge or experience, but off the top of my head I would say you get what you pay for. This PTG very easy to use and put my mind at ease when I was worried that I was taking too much clear coat off due to buffing. If you have the bread, I'd say to get this handy little tool.