I've always believed that Miles' supposed 'comeback' (after, possibly, his worst brush with drugs) was his most fruitful period -- and this CD certainly represents some of the best work he ever produced in a recording studio.
There's also something purely magical about the work he did with Gil Evans; and, I feel, the larger ensemble seems, somehow, to support Miles in a way that, sometimes, a smaller group may not.
Anyone into Miles will already own this in some form or another... -- but, if you've always been intrigued by the myth that is Miles Dewey Davis III, then this (or the later 'Kind of Blue') is possibly the best introduction (...in my humble opinion!).
[A jazz fan dies and goes to heaven; and, when he gets to the Pearly Gates, St. Peter asks him where he'd like to go first -- so the guy says he'd like to go to a jazz club.
When they get to the one St. Peter recommends, there's all sorts of people sitting at the bar, listening to the music -- Dizzy, Duke, Bird, Cannonball, etc. -- but at the far end is a guy in a dazzling, well-cut suit, wearing shades and smoking.
"Who's that?" asks the guy.
"It's God," says St. Peter: "He thinks he's Miles Davis."]