So I got a couple of these and man do I like them. They run out fast but are small enough to carry a few without any real noticeable bulk. I liked them so much I ordered one more in the same colors and two in another color (I run three flavors from a local shop so color coding is vital) and have ditched the poly-fill cartomizers. Also ordered some nano clearomizers just to try out but man oh man night and day difference. No pocket leaks either. I mean I wouldn't go running with them loose in my pocket but for just standard hustling about they work just fine. But I'm relatively new to all this so I might not be the best person to kibitz on them.