What is your definition of a "good scan"? The one that comes straight from the scanner software with no adjustments? Or, the one that yields the best results after appropriate post processing adjustments? They may be quite different.
The scanner manufacturer's software such as Nikonscan with built in non-reversible adjustments usually results in the best initial looking scans. But the best final results usually come from scanner software such as Vuescan (my choice for almost 20 years) or Silverfast which give you the most initial complete data that you manipulate yourself into final.
It's similar to believing your digital camera using auto focus, auto f-stop, auto shutter speed, auto ISO, and auto internal adjustments can deliver JPGs better than you can do yourself with post processing. Sometimes almost as good but never better.
FWIW, I am one who always chooses the easiest and simplest way to achieve the best final results. But that is never the scanner manufacturer's software.