It works well until it doesn't. I've been a Spotify user for at least 15 years (wild to say that). I've discovered a ton of bands I've become a long term fan of.

But also their algorithmic playlists have gotten worse and worse. They overfit user data. They all recommend the same singles over and over and over. I've found they also don't make sense, recommending music that doesn't even belong in the playlist.

I've switched to user created playlists more often than the algo ones, although a lot of user playlists are just saved copies of Spotify generated recommendations.