In a lot of ways, this is where I'd like to be, but my mind hesitation to jump from Spotify (and comparable services) is the ability to discover new music across a crazy variety of genres. Especially since it's stable and uses the same controls every time, I think I'd have a hard time leaving.
That’s the only thing I don’t self host. I enjoy discovering new music from various genres. I reminisce of the days when you would ask someone to send you a track you just heard over Bluetooth to your Nokia.