I've only been vaping for a little over two months(smoked for twenty years, pack and a half or more a day(25cig packs)), but within the first couple of weeks the wife noticed my snoring dropped drastically and she says the kisses taste like sweet-tarts now lol, my breathing/lung capacity and sense of smell has improved, a whole new world of food tastes has opened up, no ciggy stink on everything, no more yellow fingers, my contacts don't dry out as much anymore, haven't saved very much yet though - I'm a gadget geek who likes to tinker!