I've had mine for over a week and, apart from one naughty night, I haven't gone near the old method of getting my nicotine fix. That is a promising start. I already feel healthier. Mind you - the tube is hanging out of my mouth rather more frequently than the cigarettes were but I can use it indoors (a boon). Even with my extensive use, one fill of the liquid chamber has been lasting at least 48 hours. I charge mine about four times a day - but each charge only takes a couple of minutes. I used to combine going for a smoke with going outside to visit the outhouse and the washer and drier. The two things justified each other. Now there is no need to go outside - the outhouse is less inviting. I'm going to need to adjust to not associating chores with smoking. A couple of weeks ago - just writing this would have had me thinking about scuttling off for a smoke. I'm going to finish this review, maybe have a little puff on my Vype, and then finish checking my emails. It's a minor miracle.