E cigs can be information overload. I recently spent a few days reading this forum for information. I wanted an e cig that was more like a regular cigarette and was going to be low maintenance. I did not want to have to carry around juice bottles to refill it, and I wanted something with good battery life. I eventually settled on the vapor king from vapor4life.com. I guess these things are not patented, other companies make a "vapor king" also. The best reviews on product and service were from the vapro4life.com The price was good, and it was exactly what I was looking for. It gets great reviews from this site, and there are tons of youtube review videos also. I hope this helps.