Tried a cigalike and thought what crap, about a year later I woke with shortness of breath like some days. Talking to a friend online he told me how he quit smoking and started vaping. I ordered a nautilus mini and vision spinner v2 off ebay. I went to the small store the day I got it and got some crappy juice 2 15ml for 10$ 18 and 24mg. I filled the tank and demanded myself to quit smoking. Vaped all that day not 1cig, the next day I kinda had the itch for a cig took like 3hits off a menthol(hate menthol) and thought it tasted like crap as always, tasted my crap juice and thought it tasted better then that menthol, lol. I kept getting that itch but never smoked. About 2weeks into vaping I went to a real vape shop and tasted amazing flavors, bought 2 30ml bottles and a Istick 20w and never looked back at cigs. So in my experience it was possible in 1day. With the demand to quit smoking, and I was one of those people to start raging when I didn't smoke within 2hr's. My 2pack a day for 15years habit ended in 1 day!