today is unlike no other. my provari mini is gone,almost 2 years old still works like new.....sent it to a pal who wanted to start vapin again. he was the one who got me started. im no fool i have another. it wasent easy to part with but i feel good he will really enjoy it. if you dident know you can sand your provari it wont negate your warranty. as long as you dont take it apart..