The most important point for me is that I've spared by this mouse surgery on the little finger. I had a so-called snap fingers or quick fingers (tenosynovitis stenosans), the surgery date was already fixed. After a few weeks with the mouse I've noticed that the pain in the fingers subside, the finger no longer remains so often hanging, so I have the surgery postponed for now. After about six months, the symptoms were completely gone.
Maybe this will help the one or the other with the same complaints by trying it with this mouse. Because the price is extremely cheap, give it a try at least.
