I use it out of raw simplicity. I have an iPhone already and I've found it pretty brilliantly easy to search up an artist and add it to my library.

I don't often stream, though. I will when I'm working—usually via Apple Music web (I'll give you the web interface there, but it is fairly new) or Youtube (can get annoying).

Apple Music on my phone has been great, though. Probably the thing I like most is that it blends the downloaded albums from the streaming service with my existing library. I don't have enough experience with Spotify to know if that's possible with it as well.

Spotify's emphasis on podcasts and other forms of media kills the experience for me. Apple Music is more of a final destination, I use many other sites for discovery and rarely make or update playlists - I think it excels in library management. The one thing I do find horrific is how it tries to 'prefer' original lp's vs remasters.

I agree with all of this, and I still use Apple Music. My only reason is that it offers fairly seamless integration between your existing library mp3s and the streaming stuff. Spotify is leagues behind in this regard, my assumption is that it's on purpose because their goal is to get people to stream as much as possible.

Spotify is extremely slow and battery-draining on my 6s. I don't want the random videos that play either. I also want the integration between my mac, apple tv, watch and iphone.

For that specific complaint, the videos can be disabled in Settings -> Playback -> Canvas.