I remember the first day I got my Nautilus mini and Sigelei 30W mini, I didn't have any cravings for a cigarette whilst using the device so just stopped.
This was either 2014 or 2015, so haven't smoked since then.
Although it formed another habit, collecting mods and RTA's and RDA's. I used to be constantly on fasttech looking for clones to try out, both of mods and RTA's and RDA's. A fair few of my atty collection is authentic, and I do own the clone version to some of my authentics like the OBS Crius- they are so similar that I have a feeling some of the factories in China were making up a certain amount of authentic tanks or RDA's for the customer, then making more that went out the back door for them to sell themselves as clones.
I once bought two subtank mini clones, and the scratch off code on the box came up as genuine when I checked it with Kanger.