Boy, am I impressed! I have 22 other VV APVs, so I'm not a newbie to more sophisticated and powerful devices. After one day with the Vmax V2, I want to chime in with most others on this thread and agree that it provides a superior vaping experience compared to just about any other PV I own.
I feared that I might be put off by the menu system, but it's fine. I'm big on knowing the true resistance of my atties/cartos, and being able to set the LED to display resistance with each hit suits me perfectly.
So far, I haven't felt any need to set the voltage higher than 3.3v, despite trying a bunch of different carto types and resistances---Boge and Smoktech single-coil LRs at 1.8-2.2 ohms, IKV and Smoktech single-coil SRs (2.5 ohms), Boge SRs (3.0 ohms), ultimate CE2 clearos and X7 Micromizers from 2.5-3.0 ohms, and even SmokTech 1.5 ohm dual coils. Alone or in tanks, the Vmax doesn't care. It drives all these cartos beautifully with full, powerful hits, plentiful vapor, and terrific flavor. I'm impressed.
Will the Vmax replace my 5v regulated bottom-feeder with an HH357 3.0 ohm atty? Probably not, but that's perfectly OK. It might, however, make using many of my other VVs a bit less satisfying, however. I'm not suggesting that the Vmax vape is twice as good as my other VVs. No, that would be over-the-top and untrue. Just enthusiastic hyperbole. But it is accurate and truthful to say that the Vmax vape is often noticeably better---maybe 10%, if I were to put a generalized number on it.
At this level of vaping, 10% more satisfaction counts as a meaningful improvement on the technology.
The next questions will be about how well the Vmax holds up over time---in three inter-related ways: in the performance of the unit, in my continuing enjoyment of the vape quality, and in the mechanical/electrical durability of the device itself. No way to know the answers to those questions today. Time will tell.