Been using a Goblin for the past couple weeks and I'm just astounded at how it never leaks, can go from cold to a heated car, carry around all day, leave it on it's side all night, leave it in the car, etc. I'd like to add something to my collection that has a similar leak-proof build style but for single coils, maybe quieter and with more of a flavor focus. The Kanger Subtank has been great in every way for me EXCEPT with leaking... if I strain it enough - it often leaks on me, I also haven't tried the mini yet but from what I've read I'm not entirely confident in it. I've heard good things about the erlkonigin/erlprinz and lemo, but I'm sure there's plenty I haven't considered.