I started in January with an eGo-C, when a friend of mine introduced me to vaping. At first I was really impressed by being able not to smoke cigarettes even when sipping on a whiskey, but soon i got tired of the continuous leaking and was not able to reduce the nic concentration in my juices due to low hit.
Then I switched to CE2 systems, powered by an eGo-Twist and things got somehow better, I managed to totally quit with cigarettes.
At the moment I'm using a Provari V2 with Penelope; although it's pretty new and i still do not master Penelope, I can say it's a totally new experience, just another level.
Pretty happy with PV now. Not that happy for all the money I spent, this way I'm getting poor.