The more I use my V750, the more I'm convinced that it's virtually a match for my dedicated Konica-Minolta film scanner, and I assume it's a similar story for the V600, a good-looking scanner if ever there was one
. Only in certain dark areas do I see a miniscule drop-off in definition - separation of some of the darker tones is a little less than linear. But I doubt it'd show up even in large prints. Colours are true to life and there is a nice texture to the image.
You do have to be careful to sharpen your output - the default results are pretty soft. Ordinarily I use PhotoKit Sharpener, but I find it's a bit weak for 6400 dpi scans. Then I tend to use judicious amounts of Smart Sharpen and/or High Pass sharpening and tweak it till I'm happy. And, by the way, unlike some, I do see a real difference in 6400 dpi from the Epson as opposed to, say, 2400 dpi, especially if using Silverfast. I scan high and then resample to 3200. It gives me nice, clean results.