Ok so through a whole lot of trial and error I have learned- I do not love anything with "filler" in it (cartos, DCT). I love the flavor of dripping, but it's not practical for me all the time, plus leakage is irritating. I do not want a big tank full of anything (vivi looks too big) CE anythings I have found too unreliable though they are a very good size. Riva T tank is an ok size as well, but leakage is an issue there too, and it lacks the flavor of dripping. Right now I alternate between the T tank and dripping. My next purchase needs to be a good one that I won't regret in a week.....any suggestions? It's a bit tough to convince my smoking family that vaping is great when they see me wiping off juice and such!