The metal tanks are cheap too! The AGA-T2 is of course happy with whatever you dump in it. The funny thing is, for me anyway, is that most of the "plastic eaters" are flavors I don't really want to vape a full tank of! My pick? The A7 from empiremods. I use it far more than even my AGA. Holds 5-8 drops, depending on dry it is, perfect for trying new flavors. Couldn't ask for an easier RBA to whip up a new wick for either.