Sadly, as much as I love mine, I am done with them for now. Too many problems with the one I got, and the vendor has not yet given me an RMA for it. The biggest problem I've had is the ohm meter. Unfortunately, that is the deal breaker. IF you use it in VW mode, AND the ohm meter incorrectly detects your coil, it will over power it. I have blown out two coils so far (Protank 2, 2.2 ohm) because I didn't realize the ohm meter was fluctuating and detecting them at 4.8 ohms, it only takes a single quick vape to destroy a coil! This is a real problem for me, since I don't like VV. If you can live with VV it should be no problem because the VV is constant at whatever voltage you set.
Otherwise, the thing is AWESOME as far as form factor, weight and design. I hope they come out with a V2 of it soon to fix the ohm meter problem!