I like that it's really simple, and when I go to a nail salon, I spend a lot to have to sit for hours for nail care. Hardening the nails is over in 20 to 30 minutes, so it was great! Even when you take it off, it comes off in 10 minutes. If you make a gap with a stick, put acetone in it, and gently push it with a stick, it will come right out! Anyway, it's an innovation, it seems like a revolution to me. Ohora is my best friend. The first time I did it was about 2 weeks. My fingernails are long, so I took them off. I love that I don't have to go to the nail salon. I will buy it again next time! Haha