I want to let you all know if you haven't switch over yet. Janty changed the atomizer design on the kissbox's... I got one of the new ones. Let me tell you I mostly give this device a 4.5 out of 5 in the past. The reason I took .5 off is because newbies love small cigarette size and this thing is pretty darn huge. Also the batteries are weak. Well anyway its still real big but I got the new atomizer in it. And its a substantial change. I mean... HUGE. They got rid of the small four vents idea and switched back to two. Only that the two are HUGE vents. Anyhow the thing smokes consistently like a rockstar. Its user error if I don't get a gigantic hit. Its a game changer. After using the new atomizer for two days now I will give it a 4.8 out of 5.0.. Screw size this thing simply could not be much better and I have smoked clearly enough ecigs to know. two tenths off, one for the size and one for those weak batteries. Congrats Janty. Consider yourself reviewed by Bribri.