It's a totally cliche recommendation EXCEPT
There's a reason why it is widely considered one of the best jazz albums ever recorded
and has been certified 5X platinum (which is probably many multiples more than its next jazz competitor).
It is just jaw droppingly great.
Davis is joined here by saxophonists John Coltrane and Julian "Cannonball" Adderly (legends both), pianist Bill Evans, bassist Paul Chambers and drummer Jimmy Cobb. Miles led many great ensembles but that's pretty much like having the jazz hall of fame in your band. I think I've probably listened to this album all the way through like a thousand times and I still find new things to pick out every time it spins.
All the more amazing when you consider that Davis was basically creating a whole new jazz form here ('modal jazz' vs. bebop which was the mode du jour), the album was recorded to three track in just two sessions on two different days in 1959 and that the musicians had almost no rehearsal prior to these sessions -- Davis had given them only sketches of scales and melody lines around which the band improvised. "Flamenco Sketches" is actually a first take.