Whether or not you'll love this film or just tolerate it will probably depend if it strikes as being about Talking Heads and Discreet Music - or just talking heads and songs. If you are a follower or fan of Brian Eno you will at least watch the film to the end (maybe not in one sitting.) For myself - a fairly regularly follower of Eno from his days with Roxy Music onto his marvelous quartet of singing records - Here Come the Warm Jets, Taking Tiger Mountain by Strategy, Another Green World and Before and After Science - and into that vast collection of experimental music known as "Ambient" - the film was a welcome resume' of more than forty years of unique and substantive sounds that some call music and others call garbarge.
This more than two-and-a-half hout documentary does show some (sometimes oddly) entertaining videos with the songs that are played. It spends all of that time on just seven years out of a career that is now well into its fourth decade. It really does not feature any talking head that does anything but revere Eno and there are precious few moments in which anything but a good light is cast on his carerr and person.
And yet it is an excellent overview of not only the musician/artist/producer/engineer/inventor/businessman. It allows those whom may be familiar with singular aspects of his career (e.g., the "I LOVE BABY'S ON FIRE" fan) and also those who know the address of the location in Germany where he and Cluster wrote some of the earliest and best ambient music to understand Brian Eno's approach. And this is regardless of your opinion of the music itself. One cannot but acknowledge that his is amongst the most productive and far-ranging creative careers in the last two centuries. Indeed the crux of Eno is creation. The fact that his music is produced by a "non-musician" or that he seems to approach his creativity with serendipity and casualness is well illustrated by a wide range of testimony from the widely famous to the somewhat obscure.
This brings up an objection cited by some that there is very little direct commentary by Eno himself. It is largely limited to a brief interview conducted in 2008 in which he describes his leaving of Roxy Music. Compared to this single segment are dozens of interviews with biographers, musicians and artists speaking about Brian Eno. Fortunately most of these people seem to know what they are talking about - whether it is about specific occurrences during the early musical career of Eno or about music history, music theory or the various interests that illustrate the eclectic nature of the man many credit with at least popularizing Ambient music and of adding a richness of experimentation and much-needed humor into progressive rock as well.
Highly recommended - whether you regard him as genius or close to it, or whether you agree with some of the more than few music critics and fan that regard him as a charlatan or worse.