No two people are alike in every way, thank goodness, that's why there are a multitude of devices to choose from. I don't care what anybody uses as long as it keeps them off the stinkies, that is the most important thing. I am simply trying to point out that both devices whether VV or VW, it is the VOLTAGE that is adjusted, nothing else. And it is in this regard if you know ohms law and what to set your VV device to, there is NO difference between VV and VW, because when you press the button, the same power is being provided by both devices. Furthermore, if you are like a lot of vapers, and vape different juices, you will be adjusting either device to taste anyway, but I do understand why many prefer VW and I have no problem with that.