I too recommend the eGo. But I personally use the eGo-T model. The mouth piece and tank are a single unit. I like it because its easy to refill, and a single 1 ml talk lasts almost all day with out needing to drip all the time, but its personal preference. The one draw back is the tanks are more subject to leaking after being re-used a few times. But I ordered (but not yet received so I haven't tried them out yet) a softer plastic tank, instead of the normal hard tank, which is suposed to be better at preventing leaks because it forms a tighter seal around the wick. The 1000mah battery lasts me two days under normal, non-chain vaping, use. (using a normal atty too. As a LR atty reduces battery life)