I would like to rise the question about splotchiness after denoising. Rawalanche did open ticket about it in mantis, but it was closed with explanation that it's really hard to fix it. You can see this effect quite clearly in renders uploaded by jesuscaballero (on the blanket and in less degree, on curtains). Flat textureless areas are especially prone to this splotchiness and from my experience it shows itself even at as low noise treshold as ~3%.
I'm not complaining much, i just want to know if it's something that possibly will be looked at in the future, or it's completely unfixable?
In any case, to my great surprise, i find denoising very useful and i use it and like it very much!