To be honest, the e-cigs are much of a muchness...I know several people who tried different brands and they all seem to work the same...
What pisses me off is that so few pubs let you smoke them! You're only breathing out water vapour, it can't possibly harm anyone, yet try and have a few drags on one and folks look at you like you're blowing fat cigar smoke right into their faces... and then you usually get told to stop it or get thrown out.
I was a smoker for a lot of years and I appreciate why that would bother some people but c'mon... I don't like many things about pubs (people who bring their kids in after 9pm and let them run around unsupervised, for one) but you don't catch me whining on about it!
Either way, wenzlaff, go for it, you won't regret it. I can't say that I've completely given up the cancersticks, I'm sort of double-barrelling right now, but I've gone from 20 a day to 20 a week and I'm cutting down further all the time with the eventual aim of getting rid of them completely. And I'm sure I will. Good luck.