I just got mine a few weeks ago. so far its really sterdy, the safety features are cool. on 1W-149W you can hold it down for 20 seconds until it automaticly stops. and 150W-200W its 15 seconds. and when It reaches (cant remember exactly what) until 200W is pulsating. the temp control only works with nickel wire. do that's one thing. and the tank I have for it is the tfv4 which is a sub ohm tank. which makes the experience even better. I so far give the snow wolf a 100% thumbs up.