I would stay away from the smok products. I have an M-50, and I really liked it, until recently. I haven't had it long and lately it started refusing to fire half the time. It would say check atomizer or weak battery and wouldn't do anything, and then just start working again. That's not as bad as its other issue it has developed. It will just fire on its own for no reason. Tonight I sat it down and walked away from it. When I came back to it a couple of minutes later it was firing the Atty. The display wasn't lit or anything, it was just firing. So I completly dismantled it, cleaned the board and the connectors and put it back together, and it is behaving for now.... But yeah these things are crap, stay away from them! I'm not the only one with these kinds of issues with smok either. I'm looking form something else myself right now, as this thing is a potential death trap...
Yup, the smok is officially off my list. I have it narrowed down to the IPV Mini 2 or the Sigelei 50W. I am looking at these 2 because of brand familiarity and reliability. The Sigelei is probably considered higher quality but costs $80 and is only 50W. The IPV Mini 2 offers more output power and is a smaller overall size and noticeably cheaper, but it also has more reliability issues.