I have never heard Jim D. be so negative about any Apple product, but can understand his frustrations. For me, the app fails to recognise that I have an account roughly 25% of the time and so I have to close it, sign in again and wait 5 minutes before I can stream anything. And then when I can stream, it often takes a long time for the song to start playing because the general performance is poor.
Spotify kills Apple Music in every single regard apart from discovery and a sense that you are getting much more than just standard streaming of music. Apple Music is new, but it goes back to the continuing issues Apple has with the cloud.
I do not trust Apple with my music any more or my photos and I never use iCloud Drive. In my experience, none of it works to a level that makes me feel secure leaving anything important within the Apple ecosystem. If Apple can crack this, it would match the hardware perfectly, but until then I am in two minds as to whether I will use Apple Music when the trial is over or if I will go back to Spotify.