Ok, first off I started with prefilled cartos from SI. I absolutely loved the first two flavors I vaped. (Guess I just got lucky with that!) 555 and Ice Menthol. I kept reading on here how much cleaner and better the flavors were with clearo's so I decided to get a couple, along with some 555 juice and try it out. Boy was I disappointed! I kept thinking.. cleaner? Really? After about a week and going through only 1ml in a clearomizer, all I can say is it tastes a little like my fav 555 and mostly like, what I can only describe as, new plastic. I guess maybe I should have cleaned it out before I used it, but never did I read or see that advice anywhere. I didn't want to waste the liquid I put in there originally, so I finally got through it all, cleaned it out, and refilled. I can say now that it is a little better but still tasting (and smelling) a bit of plastic. I keep going back to the carto with 555 in it. It just tastes better to me. Anyone else experience this? Does anyone clean their new clearo's before they use them?