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I have some quick feedback re: chroma superres.
From what I can see, the superres for chroma is quite similar to the superres for image refinement right now. However, while the algorithm is great for luma, it's not good for chroma. In luma, superres enhances small details and edges by increasing contrast (darks become darker, lights become lighter at image transients), and the same happens to the chroma layers. However, in chroma, light vs dark is actually green vs red, or blue vs yellow, etc. When the edges have their contrast increased, you get increased wrong-color ringing.
In actual content, I haven't found any live action image that actually looks different with SR on or off. In cartoon, it can help in many situations, but also increase artifacts and ringing in others. It's also quite dependent on source quality. All in all, I don't find the performance hit to be really worth it.
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