Been using e-cigs since June
Started out with a cigalike - which was crap. Moved on to a cheap battery/clearo which got me off the fags, but was poor build quality (like in the article the threads went very quickly) then finally moved on to an eVic with a Kanger ProTank - which is awesome.
Since then, I have not looked back - I stopped smoking without even intending to. My first experience with an e-cig was simply an experiment to see what the hype was all about.
I love some of the many flavours that are available and find the eVic is great in that I can adjust the strength of the hit. I also love the fact I can download my "smoking" history to my computer and see when I use it the most. Battery life is awesome on this device as well easily lasting a couple of days.
The ProTank (as featured in the article) does have its issues though. It is very prone to flooding, in which the coil / wick becomes too saturated. This results in a gurgling when you inhale and the occasional bit of unvapourised liquid getting into the mouth - thats a bit unpleasant.
Most of my friends and family don't mind me using it in front of them - my parents (who hate smoking) even let me use it in their house. I am also one of the lucky few that can use it in the office. The only objections I have had have been when smoking some of the stronger flavours which do produce a noticeable odour.
To date, I have converted 9 smokers to vapers. Every single one of them (and myself included) has seen health benefits from quitting the stinkies. In my case, I had a persistent wheeze and cough whilst I was smoking - that has completely disappeared. I also have more energy and my blood pressure has gone down.
Also worth noting - my wallet is MUCH better off.. Now I have discovered mixing my own liquids and I have some favourite flavours the habit is only costing me around £5-10 / month. Compared to £7-8 / day.
Anyone interested in trying to quit smoking should give vaping a go - get a cheap kit (they can be picked up for £10-20) and try it for a couple of weeks. After that - if your actual smoking is reduced it is worth investing in a kit that features variable volt / variable watt so you can get the most out of it.
As for the risks - much less than staying on the cigarettes so there is nothing to lose.