Apple Music is still a very sub-par experience compared to Spotify. Following issues:
a discover equivalent simply doesn't work as good. Apple Music has the "For You" feature where you can actually find nice compilations, based on your likes, HOWEVER they only have around 7-8 tracks in a list. REALLY? I need more for a workout.
I hate the playlist and online/offline functionality of Apple Music, it's too complicated. I always hated it within iTunes, and this just amplifies it.
Still very buggy when you have bad connection. Spotify outshines here.
Less choices of independent artists. While I love the fact that almost every Drake and OVO can be found on Spotify, I can't find all the rest I've discovered on Spotify.
For now I'm switching back.