Let me tell you! True story.
Thanks to QU, over the past 3 years or so, I have evolved from a mostly jpg based workflow, to a mostly raw workflow - although I capture both jpg and raw - but now mostly don't use the jpegs except for unusual situations.
Anyway, about 6 weeks ago I set up my Rube Goldberg studio and did a session with 2 of my grandchildren. Lasted less than 15 minutes - got about 75 shots - that's about how much patience 2 year olds have. When I got finished, I was chagrined to find that I had not connected either of my auxiliary battery packs and feared that I would have many seriously underexposed pictures. because I tended to shoot in bursts once I got the children positioned. and was not sure if my flashes had adequate recycle time.
So I dumped the raw images into QU, didn't see any serious problems with any of the images and within a few days had a dozen or so frame-ready 8x10s, then moved on to other stuff. Of course I made slight adjustments to exposure, balance etc - usual tweaks for each one - but none of them seemed out of normal range and I didn't have any thoughts that there were any exposure issues related to the session.
A couple of days ago - for reasons not worth getting into - I dumped the jpegs of that same session into QU. I was shocked to see that exactly every third picture was almost completely black! The raw versions of some of these are already in frames. The jpegs - even after exposure correction, fill light and all of the usual adjustments, would not make acceptable prints.
My raw exposure settings are just the QU defaults. I seldom have to do a refine of those.
So how good is the default raw processing? Let me just use a gentle expletive and say Darn Darn good!
Mel W. Columbia, Md.