The Vapor King was my first electronic cigarette. At first I loved it--I quit smoking for over a week. Finally I could smell just how bad my car smelt! Now however, I've purchased several different Nobacco juices from Vapor4Life including 18mg Vanilla, 24mg No Flavor, and 24mg Clove and they have all irritated my throat and made me cough upon inhale. The only liquid I've purchased that hasn't irritated my throat is V4L's Cappuccino 18mg, and also the rest of them seem to not produce much vapor. Granted, Steve is the only liquid supplier I have ever purchased from. I'm only posting this to find out if other V4L customers have experienced this. I read many reviews on this site before settling with Steve's PV, and I am thoroughly happy with my Vapor King and the cartomizers I've received from him. The two prefilled carts I bought (Mint and 555) did not irritate my throat at all. I quit smoking for a few weeks, but the cough from the liquid I purchased made me to switch back to analogs for a few months. The liquids I mentioned irritate my throat and make me cough even more than analogs do.