That's funny, usually it's the other way around: I find the sound of CDs a bit tart and crisp and you don't To my ears and on my system the sound is OK, taking the age of the tapes and the fact that they or at least some of them were lost for a long time (who knows how they were stored...) into account. I think Malcolm Addey did a fine transferring/remixing/remastering job.
I fully agree with Lon's assessment of the music, and the booklet is great.
Edit: I've listened to parts of the set again tonight, and Lon's right, Sonny's saxophone does sound a bit tart here and there.