The pump cart is very satisfying, it's just finicky and takes a learning curve to use properly, like too many other products. The vision, however, works right out of the box, as intended. No burning, leaking, juice in the mouth, it's easy to fill and has better flavor and vapor than anything else I've tried. It's only downfall is that it's simply massive. But that's irrelevant on a provari. As far as I know it's functionally similar to a fluxomizer but simplified and with none of it's quirks.