I’m having an issue where the nanite clusters are not staying similarly sized to the rest of the assets in the scene, which causes very noticeable degradation in quality as the camera distance increases.
Some additional tests. I’d say trying to get any surface detail smaller than 5mm is probably not going to be worthwhile. Even 5mm is probably pushing it imo, but much of the lost detail won’t be noticeable on meshes with fairly noisy albedo/roughness.
Small regular patterns like the diamond pattern below also don’t reduce well despite retaining more triangles. Not much of a surprise I guess, geometry like this doesn’t reduce well in general.