You see: the difference between us is that you see YouTube Music as an extra. I see the other features as an extra since I only really use YouTube music.
Sure, it sucked about 2 years ago but it has become really good in the last few months.
If you don't use Spotify and use YouTube a lot, YouTube premium is worth it.
It also has that. You can login with google
You don't even need to subscribe and get recommendations