Most people regard the V700/V750 as being a very good scanner, but in practice, only capable of about 2400 DPI of real resolution. If the optical quality of the PrimeFilm 120 can achieve a true 3200 DPI, coupled with (presumably) autofocus ability, and decent D-Max (with low noise) then it is a significant step up from the flatbeds, albeit at a significant price premium.
That's why I said I'd love to see a detailed, comprehensive, analytical review, instead of just re-publishing the manufacturers selling points and adding "I scanned a couple of pictures, and it looks good to me." at the end. That's the only way we'll know for sure, since I don't think anyone here is willing to drop $2000 just to try it out.
--Greg