I've mentioned in many threads that a smoker friend of mine was interested in switching to vapeing. Since she was new I recommend something easy. The istick 30 (since the 50 had such a bad reputation) for awhile she was very happy. She bought two. One is still working fine, the other died right after the 30 day warranty. Honestly I wasn't surprised. As said these cheap mass produced mod's are a crap shoot. I don't want to see her quit out of frustration, so my next recommendation will be for her to spend the money for quality.