Mark, I was thinking it over several times, too. But generally, I am slowly and unforcedly working my way back (first from modal/free to bop, and now to swing and earlier things), and I like almost anything I have yet encountered. And if I don't like it now, there might still come a time I will...
Anyway, I think I do have some sort of idea of what I will going to hear.
ubu
Just to make sure I wasn't misunderstood, the recommendation I hesitate to make is to skip disc one. As for buying the set, I don't hesitate at all. It was a very delightful surprise for me! I'm working my way back as well, although as I started at hard bop, I find myself working forward at the same time.
I really like what I've heard so far! The quartet George Lewis tracks are sublime! Great music, good liners, nice photos (that one of Paul Barbarin is beautiful, on top of page 5, I think - don't have it at hand right now).
ubu