I remember it being a lot worse than it currently is, so I think they've realized a lot of that doesn't work or are doing some A/B testing on fixing things. My Spotify homepage is entirely relevant to me content outside of three sections for "popular" things. I'd say the audiobooks section is irrelevant since I don't care for them, but their recommendations are pretty much dead on. My mixes are all based around a different band I like. It used to shove a lot of "recommended" music I obviously wouldn't care for at me but hasn't for a while.

Release Radar is my only complaint, it frustrates me since it misses things from bands I listen to constantly and what it finds 90% of the time feels like they should just say "nothing new came out that you would like".