LOL, I feel like a broken record tonight, but I love my vivi nova. I have the v2.5 but the only diff I notice is colored
tanks???
With the 2.8 head you can use any of the high voltage setting on the provari. Some even use the 2.4ohm head.
The vivi nova
tank will even grow with you. So quick and easy cleaning, just unscrew the old head(wick and coil) and screw a new one on. Then after sometime learning and understanding how it all works you can rebuild the wick and coils yourself. customize it however you like. Including coil size(determines what volts your "head" can handle) and style of coil. from your standard silica wick and nicrome wire to cotton wicks surrounded by stainless steel mesh made with kanthal a-1 wire. I've even seem them duel coil, though not a fan of them myself. So yes. the vivi nova is a good device if you want to grow with it.