All I can say is Im pretty heated right now about atomizers in general. My new HH357 V2 stopped working after 2 days. It still gets hot, but it wont make ANY vapor. I pm'ed H-Bomb, but he has yet to respond even though hes been online multiple times since then. I tried going through AV, but they never responded either. It really pisses me off that something that costs almost 20x that of a singe carto performs less than 1% as good as a carto, AND has ZERO customer service to support it!