Really simple to use with easy instructions. Completely painless and has a cooling system to reduce the tingling. It’s small and easy to travel with. I’ve been using it on my hands and after 6 weeks, hair growth is minimal. The screen is very small so it may take a while to cover larger areas. My only suggestion is to make sure to shave EVERY time prior to use. If you don’t, the laser will burn your hairs which causes some pain and the smell of burning hair. Overall, love it! Definitely worth the money !