Bin meanwhile become a passionate user of Kanger evaporators. And the Minis excellent match for the battery makers with small diameter (Joyetech Ego & Co). In quality there's nothing to complain about. I do not know how to arrive at a different assessment. I use the Mini to an ego Twist (ie = UTF8 & qid = 1401746068 & sr = 1-3 & keywords = Joyetech + twist) at> 4 V and am of the steam development very impressed. Of course there are better, but for the size and the price one must seek safe long to find comparable. I've just ordered the next Mini and will soon also times the new Kanger Aero Mini test.