Yellow Magic Orchestra is one of my favorite bands, so the 5 minute sequence featuring archival 80's synth footage was EXCELLENT. The rest of the film is still a fascinating insight into a genius at work. Loved seeing his process and how he still fights to make profound art. The documentary dips into heavy themes such as nuclear annihilation and mortality, but overall it has the chill vibe of hanging with a charming old Japanese man. Pleasant, a bit sleepy, but very cool.
(Like most specific artist profiles, I don't expect this to have broad appeal, but if you're a fan you'll dig it)