I’m a chiropractor owning 3 offices in PA, USA. This machine is awesome! This one shows very high cost performance, too! I have been using 2 original radial shockwave machines in my 2 offices since 2017. This March (2023), I took over a new office, so I wanted to buy one more shockwave machine. But I couldn’t spend too much money for buying a new one which might cost about $15,000. So I had been searched for a replacement with good price. Finally I found and bought this machine. I haven’t had any issues since I bought it. And I can’t tell there is a big difference between the original shockwave and this machine. Based upon my experience, I needed some parts. So I contacted the company, and the company immediately responded and let me have the parts available on Amazon. This company is a pleasure to deal with, and this machine is worth every single penny. I couldn't be happier.