Now I've only had it for 30mins but hears what I think. Not a hard draw like some have said and good vapor production. The flavor is not that strong and I'm using some fruit stripped gum flavor at 18mg strength. Very easy to fill but the .5ml tank could be bigger (though I only go through about 1 to 1.5mls a day). Over all though I like it (hey I had a Blu before this so anything is better) but I'm going to get some cartos cuz they do give me a better taste.