I think I'd suggest vivi nova. Or the mini on an ego. Much less fiddling.
Hmmmm, although I am finding myself pushing the Vivi more to a backup role, and am not overly thrilled with the hot/dry (seeming) nature of it, it is not at all a terrible device, and with the super easy filling, that might not be bad.
I know this guy is cheap (he doesn't understand how FAST he will start saving, dumping a 2pack a day habbit yet), so what do you think about batteries for the ViVi. I've been brainwashed by my Provari's (you guys are enablers dammit), and with the stock head, the standard EGO batt didn't seem to have enough kick for me, and I don't think I can sell him, or confuse him with VV yet.
own, not won. I wish I had won it. Sure would've been cheaper. 
