1. Helped me take something I like or am super into at the time (band or song) and give me a playlist
2. actually suggested with a high hit rate something I didn't know about and it was available to play right now.
other streaming or stations just loop into what I already have which sucks. Side note that I'm into pretty niche non mainstream music such as Melodic Death Metal and Industrial so self hosting seems interesting but I also spend a good chunk of my time looking for more music. (Most of the bands I am really into only have sub-20k plays a month on Spotify).
I really miss Napster letting you browse people's music when you found someone who was also into things you liked - pure gold mine only second to a LAN party where you could dig through the file server.