Although I have an addictive personality, I haven't had much issue with Juul. (Never smoked cigarettes before vaping.) I never actually feel a craving to use it. I just use it a few days per week, and usually no more than 3-4 puffs in a day, before doing intellectually challenging work. The first one or two times I got a slight pleasurable feeling, but after that it seemed to mostly just be nootropic effects.

I was recently prescribed bupropion, which supposedly binds to nicotinic acetylcholine receptors and prevents a dopamine response when nicotine enters the receptor (which is why bupropion is used as a smoking cessation aid), so maybe that has something to do with my not craving it. I still seem to get nootropic effects. And I started using Juul about a month before I was prescribed bupropion, and also didn't seem to experience cravings (either physiological or psychological) then.