Yeah I have heard great things about the provari, but I want a juice feed system.  I stopped vaping about a year ago because of the hassle of dripping, carts, etc.  I hate it.  I'm dripping now on a Riva kit and I'm not satisfied with the inconsistency of the vapes, loss of flavor for no reason, etc.  I have heard nothing but outstanding reviews about the Ali'i, apparently the juice feed system is perfect.   
 
If I was to go with the ProVari (which I still may do) I would definitely get a VapeMate to go with it.  I am not a fan of having to turn the device sideways to get the liquid to the atty, plus its a top feeder, which replicates dripping, which again I am not a fan of. 
 
I'd definitely check out some of the reviews on the Ali'i either on here or ECF because so far everyone is raving about it.