I downloaded the demo. I'm shooting with a Nikon d750 and it was a d300 before that. I don't really have anything great I could offer you as an example. I work my settings pretty carefully to avoid noise so anything that's noisy is usually trashed. I'll have to try this out the next time I run into a screw up that's really noisy and see how it does.
I did manage to dig up a few photos to try it on though. I found that for some photos where there was a little more grain than I wanted that Noiseless at the low or lowest setting was able to do a pretty good job of smoothing out the grain without ruining the overall texture of the photo. It's especially good with people.
It's especially good with people because it makes them look better. The filter smooths out skin blemishes, but not so much that you want to scream "uncanny valley"... at least in the lighter settings.
For the right photo, this works great. For a lot of photos a bad photographer is still going to be a bad photographer no matter how you apply filters.
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It does that. Download the demo.
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Sorry. I think it was just a visceral reaction to the demo city photo. Over filtering is a pet peeve of mine... more of a statement on people who don't know when to say when than it was on their software. I did try it and really like the results on the right kind of photo.
The more feedback the better. Thanks guys. Alex