Thanks. Yeah, I used to do the tug-and-pull of scaling, then adding noise and sharpening, scaling a little more, adding more noise, adding more sharpening, etc. to ad nauseam. And photoshop sharpening was too much always for my taste.
At scale, this tool should speed that process up a "bit". Let's say 100s of photos.
Most any upsize looks better if you toss hue protected noise back in; you've made good use of that point.