Ok so a quick update on the gs h5. I actually got the gs h5c which is eGo thread instead of 510. So far it's been pretty amazing for the price. Slight leakage from time to time but not bad by any means. Good vapor production. Got it July 15 and been vaping on it ever since. Only thing I have done so far is clean the coil. Works great on my eGo and evod batteries.