I recieved this rta a couple a days ago from another shop and was very disappointed with ulton quality, o-rings are realy bad on this one and the tolerences of the chamber/chimnea and deck are not good. If you close aircontrolering completely you can still vape with it and if you close liquid control it keeps on wicking only the liquid gets in the deck from everywhere and overfludding is the result. Also if everything is screwed together real strong the tank is wanky, I could make it a little better by changing o-rings but ulton should step up their game again and make good quality products like before, the only thing they do right now is raising the price and so it looks like good quality but it isn´t :(