I've semi-converted 2 (they have eGos, but haven't really found the right set-ups to suit them yet, so they are still smoking analogs about half the time). I've also sent at least 2 people here to the forums to read and research, and hopefully order and start! I'm a fiend now myself, after a grand total of one week, LOL. Just ordered a box of soft-tip cartos, decided I like the ones with the mouthpiece better. More of a pain in the butt to fill, but I just like the mouthpiece ones better. And flavors, flavors, flavors, LOL.