I absolutely love my Twist. Will be getting more of them in a bit.
I use it differently from the Provari. On the Provari I set the voltage on the menu first, and then adjust it as needed by looking at the numbers.
The Twist is less precise, but easier to use. I just set it on the lowest number - turn the dial to the stop - and then adjust up without even looking at it, by feel and taste. You get a feel for it very quickly. It would be nice if the numbers were more visible, but it doesn't matter as much as I thought it would, since I mostly don't look at them anyway.
And it sure as heck beats having to carry a big heavy tube around.
It's really nice, very functional, and you can't beat the price for the VV functionality. Great product, imo. Hope the longevity matches the other factors.
One thing that I noticed though is that this batt heats up at the cartomizer end with chain-vaping, unlike the regular eGos. Don't know if that means anything...