Positives: strong vapor development and thereby intense flavor, large tank (is also necessary because the evaporator more liquid consumed), strong battery (Did the larger version). Negatives: my product does not appear fully developed: The evaporator is screwed on top of the battery part but dissolves again when screwing for refilling and is in overlying portion when removing two evaporators are broken me already gone. Even the current pulse does not completely free of errors, sometimes, though rarely, there is no steam. Another drawback: Very difficult (OK, I have a larger battery.). Conclusion: I use them still, find the face of this price mistakes but annoying.
UPDATE almost two months after the first review: The eGo ONE I barely use. Liquid is sporadically leaked during transport, the enormous consumption of Liquid I bother getting more, because it is connected to the here especially cumbersome filling, and recently I even had a bad, strange taste, although sufficiently liquid was inside. Too bad I have very liked in the beginning, but I am switched again to other e-cigarettes.