I was so excited waiting for my e-cig and could not be more disappointed after the first puff...My complain is not the flavor or the amount of vapor but the feeling of mist. It was so unpleasant and irritating, making me cough, often, that I quickly developed a reject feeling and the only idea of taking the e-cig was unpleasant. Tried different levels of nic and flavors but it was the same irritating vapor. If I switch to another brand, could I expect a different quality vapor? How could be possible have a clue about that feature? Are e-cig sizes standard, I mean, can I try different cartos in the same cig or should I buy a new cig with every try? Now I use mine just occasionally and most of the time I smoke regular cigarettes.