What Apple Music needs is a separate app. The subscription has ruined my library several times and it is difficult to keep my own music and subscribed music seperate. It much easier to have a cloud library in spotify, and "owned" music in iTunes
For myself I resolved whatever seemed to be my own issues with Apple Music --as far as my primary laptop usages goes -- by having separate iTunes libraries. But I admit to having launched my experimentation with Apple music on a spare computer with a dummy itunes library to start with, "owning" only a couple of ripped CDs and just one each of albums purchased from iTunes as AAC and as DRM-protected files.
Spotify I do use now and then on my laptop via browser, but tend to revert to Apple Music just out of familiarity with iTunes' manner of presenting my options. As I do keep that separate library for Apple music acquisitions, it's long since become habit for me to open iTunes with the option key held down and then just select which library I'm looking to launch with.
I have a lot of purchased music from CDs ripped to iTunes libraries, and still don't use any mobile devices with Apple music. The little experiments I did do with AM on a mobile, I ran on an iPod touch around the same time I was playing around on that spare laptop with some "guinea pig" libraries. I kept inadvertently wiping out stuff on the iPod touch. I blamed myselt, and then my test setup, and finally got around to reading the web's experience with it and said ok, maybe later for this... LOL it was early days then with Apple Music and likely whatever happened there has been remedied, plus the UI in general for the iOS version of the music app seems to have improved over time.
But, my mobiles now still only know anything about music from what I let them see and scarf up off my regular iTunes libraries. I do use and really like Apple music a lot using it from a laptop. It has let me acquire so much a better sense of assorted classical works and operas that of course I could not just go out and buy all of for the sake of selecting one I might end up preferring. And it lets me keep up with contemporary music including new releases from some favored older bands as well. I suppose that Spotify does that well also, and for me Apple Music is particularly a matter of preference via habitual use of iTunes.
This thread revives my interest in fishing up that iPod touch and giving mobile use of AM another go, I have to say. I wouldn't reboot that project on my iPhone, that's for sure. Maybe Later, when I know what I'm doing with Apple music on the current iOS music app. Perhaps I should be giving Spotify another shot at my mobile usage as well...