This is Miles and two of his Quintets at their very best. The music that the bands play here is amazing. Coltrane and Stitt have very unique styles and thus add their own effects to the music. Coltrane plays fairly normally on the traditional songs, but on the modal tunes such as "So What" his playing borders on the free form that he would soon be getting into. However, he is only heard on the first seven tracks (the fourth of which is an interview with him), and Stitt certainly holds his own. In contrast to Coltrane's pseudo-avant-garde playing, Stitt plays very lyrically, weaving through excellent bop-style solos throughout the album. Miles's playing is beautiful as well, from his muted ballad tone on Green Dolphin Street to his hard swinging on Walkin'. Together, these 4 CDs contain over four hours of some of the best jazz on the market. I highly reccommend that you get these; if you like Miles's music then you won't be disappointed.