"I am on a blood thinner and was told I need to use a razor that would not cut or nick my skin. I have always used a disposable razor. I have very sensitive skin and I did get a slight rash under my arms when I first began using this razor. That has subsided for the most part after my third or fourth use. No nicks or cuts. It is easy to use (swivel head), clean, and fairly quiet. Battery lasts a long time between charges. It works great in the shower. I have not tried it dry, and don't intend to. It does feel a bit funny if you have never used an electric razor."