I found the e-stick very smooth compared to others I've tried, and really liked the taste. Love the little charge box, can take it anywhere. Small in size compared to others, about the size of a slim cigarette. But this does not affect the taste. Very easy to use, no filling and doesn't leak, which I found to be a major problem with the others I have tried. The only down side is there is only one strength, and I would like to reduce mine until I can wean myself off. Which means I have to change to the Vype e-pen which is bigger and doesn't have the charge box.