Chasing Trane, the documentary, made me revisit this. I must say that I haven't listened to this for quite a few years, and right now the wailin's and meanderin' gets on my nerves in some tracks. The playing concept of his new quartet with Tyner, Steve Davis, and Elvin works beautifully with Coltrane's originals, but less well with standards - these versions of Body And Soul or My Favourite Things never really fascinated me. Tyner's chords get a bit repetitive at times. They still convince me in the more concise performances of originals. But the alternate of Blues For Elvin sounds, to me, as if the are tired from the long recording sessions and need a break.
p.s. I always thought, and new listening confiirms this, that Paul Chambers is not getting the rhythmic structure of the bass line on Naima.