I will say that the sound of these releases has generally improved this decade, though I still prefer the sound of earlier cds from other releases when I can compare (for example I think the Scott material sounds much better from Japan).
I've been enjoying the two Jeri Southern boxes, which are very well collated and annotated and sound very good. They include single releases that are not readily available anywhere else digitally. . . a good thing. Southern has become a real favorite of mine over the years.