I'm stuck with both. I'm keeping YT Music because of all of my music uploads, as well as having ad-free YouTube and a family account. But I need Spotify Premium so that I can access it in my car's system (which has Spotify built-in, but not Android Auto). And on top of that, I'll be subscribing to Amazon Music Unlimited for my 11 year old daughter for the next 2 years since she can't install regular YT Music nor Spotify on her iPhone due to age restrictions (yes, I was an honest citizen and told the truth about her age when I created her Google account). Amazon Music is the only music service I could install on her phone, and she uses my Amazon account for it. Oh well, at least the first 3 months are free.