Go with the Reo Grand with a Carto. The vaping is consistent and the battery goes all day. If you prefer the smaller package go with the Reo Mini. I have both and prefer the Grand currently. You can't go wrong with a metal mod. Not to sound like a bias fan boy, but the Grand is slightly smaller than the Woodvil and smaller than an Ali'i. The mini is tiny compared them as well. It isn't a vari-volt, but after finding the cartos you like you're journey will be over. I like to think purchasing a reputable self-juicing mod is similar to going into retirement as far the constant research of the "better" vaping experience. Hope you end up with the mod you want.