Best two reviews:
1) Hitfix - While there is an untruth at the heart of the film, it's in service of illuminating any number of smaller truths, and I find that approach fascinating. (Rating: 83) Read Full Review >
2) indieWIRE - Erratic, unpredictable and constantly intriguing, Miles Ahead plays more like one of Davis' compositions than a traditional biopic, stumbling around with flashes of insight and a brilliant central performance. (Rating: 75) Read Full Review >

Worst two reviews:
8) Consequence of Sound - In fits and starts, the film matches the fire of its lead performance. Miles Ahead is far from a traditional, boilerplate music biopic, for better and worse alike. (Rating: 58) Read Full Review >
9) Slant Magazine - Less a character study than an impressionistic portrait of a troubled artist's internal chaos, it supplies just enough Miles Davis to leave us jonesing for more. (Rating: 50) Read Full Review >