I had an e-tank Pro as replacement to its predecessor (which is no longer in production). I'm still in the "transition" period but do find it easy to use - a little more "fiddlier" & getting used to the more vape cloud produced but, with practice by adjusting the inhale, getting used to it. I'm sure, with time, it will become "second nature". I'm using this a give up smoking" tool which is proving effective. I have used other vaping devices & find Vype is, actually, the best in the price range (under £30) & topping up with juice is very easy.