A guy let me try one at a gun show a couple of weeks ago. It looked like a regular cigarette (super-mini?) and I thought it was pretty cool, but he wanted $150 for it, and the cartridges and batteries were pricey.
But, I'm a techy gadget freak and I caught the bug from the demo.
So, I found this forum, read a whole bunch, and ordered 2 901bs, two penstyles, 1 "bling" cigar, and tons of juices and accessories. $600 or so later

I haven't smoked a real cigarette since. I can even "vape" at work!
I've gotten nothing but good reactions from everybody, nobody has tried to stop me from "vaping" anywhere, (including stores, restaurants, bars, malls...) and if I sold the things I could have unloaded at least 200 of them since I started with all the interested people that bug me about it when they notice I'm enjoying my drink inside the bar while "smoking" while everyone else is freezing their butts off here in the Denver winter.
I pointed them to Puresmoker, since Steve has been the fastest and most helpful dealer I've done business with so far. I wish I was selling these things, I'd be a wealthy man from the interest people have shown.
I LOVE these things. Still waiting on my "bling" though. I'm excited. Total Blade Runnerish e-smoke device.