2 setups,
Mech: FUhattan, with an Atlantis (0.6 ohm coil) tank.
Box: MVP 3.0 (30, not the 60), with a Kanger SubTank Mini (0.6 ohm rebuildable coil option).
I keep two flavors active, and i like using the rebuildable option of the SubTank on a regulated mod for a failsafe. Still only a week or two into learning how to rebuild.