The ability to smoothly transition between three different waveforms per oscillator is a big plus, compared to the VS, though there will be some sounds that one cannot duplicate exactly.
For me, having worked on a VS in the not-so-distant past (for repair purposes), I'd be more inclined toward a Prophet-12–or an Ensoniq ESQ-1/SQ-80, which (to me anyway) seem eminently more serviceable.
I've already got a Pro-2, the paraphony of which forces me to make some interesting decisions in terms of constraints–in fact, that might very well be the mark of a good instrument (i.e., it doesn't let one do everything, but it allows you to do quite a bit).