I just discovered the world of esmoking and i just love it. I bought a greensmoke ecigarette kit and everything is great except one of the batteries just stopped working and the other one I have to puff really hard to get it to turn on. But they said they would take them back and exchange them for new ones no problem, I just have to wait for my second kit to come in the mail before I can send them back. I just can't bear to be without my ecig.