For YEARS I've only used pen batteries and simple EVOD tanks, or an Aspire on an iStick battery, and I'm branching out! We ordered an eGo ONE and a Kanger Drip Box, both to try something new, and I'm already excited for them to arrive. Heard good things about the longevity of the eGo ONE and the ease of rebuilding the coils, and had many friends vouch that the Kanger was a good place to start on those types of mods. Anyone have one of these and any good advice on maintaining them? I can't wait to get those pretties in!