I'm an owner of both the eVic and the Provari, and just for me, I choose the Provari. For one function only: The amp limit. I just wanted a little more, and the Provari could give it to me. If the eVic had a 3.5 amp switch like the Provari instead of the 2.25 amp switch it currently has, then I would use it again.
But if it gives you what you want, keep at it!