V600 is a beautiful scanner. It's dynamic range is pretty good. I am using this scanner for two years, I scan my 6X7, 35mm & XPan negatives.
When compared with Nikon Cool scan 9000, there was not much difference. Each frame can be adjusted with level & curve tool. You can rely on
this scanner.
I've been using the scanner. I haven't scanned 120 but scanned a few rolls of 35mm. The Digital ICE removes dust, but really kills sharpness and detail. And it adds alot of time to the scanning. So I don't use it-I remove dust spots manually.