I like my Sigelei Zmax Telescopic V3. This doesn't look anything like a Provari. In fact, Sigelei sells a lot more APVs that look like a Sigelei than the ones that look like Provaris. That's because Provaris look gaudy and over-styling is just plain ugly.
I like the V3 better than the Provari. It costs 25% of what a Provari costs and does more.
What Sigelei Zmax V3 does that Provari won't:
-VV/VW
-accepts 18350, 18490, 18500, 18650 and 2x18350 batteries right out of the box
-uses button top or the less expensive flat top batteries
-heavy stainless steel build
-removable top cap for easy cleaning
-510/eGo connection. The threads are one-piece stainless steel and the best on the market
-flat top cap available so wider atomizers don't look dorky on it, unlike the Provari
-one of the smalest VV/VW tube mods available
I even love the rattlesnake sound that comes from LR cartos. Lets me know the goodness is coming on the highway.