Well I gave Apple Music a try since they have the free two month trial. I'll note that I'm on Windows, and ye olde iTunes was never great, but this is outright dysfunctional...
Something is getting played at like 4x the volume before it hits a brickwall limiter in the app. Any bass-y parts of songs are having their volume reduced for the first 2 seconds. Disabling their loudness compensation doesn't help... Other songs are extremely quiet, even when the loudness compensation is on. This will even happen between two songs on the same album?
And then double-clicking on a playlist doesn't play it? Double-clicking a song while shuffle is turned on instead plays a different song in the playlist? You can't sort by e.g. artist or song name in a playlist??? (Edit: also spacebar doesn't play/pause the active song)
Which honestly sucks, because of the 400ish (mostly fairly niche) songs I've tried moving over via Soundiiz, it only lost 4 of them, one of which was because iTunes censored the name and it still exists there. Deezer and Tidal had about a 70% hit rate for me. Rdio was like 40% but maybe they're better now jk they're dead now.
Edit: And when you cancel it from inside the Windows app, you get stuck with a webpage dialog that has no close button, the "done" button does nothing, and the app itself won't take input because it's waiting for the dialog...