As 9 pages of other people have told you...get it. Nautilus mini and IStick seem to be the preferred setup. Had mine about a week and haven't out it down. My mini is also on the way. Currently I'm using it with a Kanger Mega, which I drilled another air hole in, as I like a looser draw than the largest setting.
This thing is worth ever penny. I own the SVD, vv3, Iclik 1400 mah, magneto, and prob some others im not thinkimg of. This is my traveling mod and couldn't be happier...apparently I'm always traveling as I still haven't put it down!
one complaint from people Is that it takes too long to go from lowest wattage setting to highest. They obviously haven't played with it much, because once you put it in auto advance, one click of arrow in same direction gets it to skip by .2 watts, one more click and it jumps by .5 watts.