Worked pretty good at first then wasn't wicking with the high VG juices I was using. Eventually I had to keep unscrewing the top fill cap to let it breathe and wick properly. Then the top cap stopped screwing back on. Which then caused it to start leaking e-juice everywhere. Then the threads on the battery went and I had to hold the tank on the battery to even get a vape. I'm thinking this kit might not be worth your money.