Im no fan boy either way, but i dont see the reason for a provari. The VV is nice, and i will never go back, its to big of a difference in flavor and hit, between this and the old ego style at 3.7. But unless im missing something, the provari is just a vv device, so its not going to have any real performance differences. They may fluctuate a little more one way or the other, but in the long run, its a vv, its doing its job, and I personally was surprised with how well this looks and functions as a device. So for ~$70 i got a vv tube, 2 atties, two batteries, charger, case, drip tip. Seems like a no brainer.