What's All The Fuss And Big Deal About Roon About Roon Being A Must-Have??

I Have a Bluesound Node jacked into my dac and I'm pretty thrilled about it.

I'm happy streaming Tidal, Amazon, Napster and a ton of internet radio stations through my Bluesound Node.  I use a Sonos to stream Pandora.

I've even bought an 8 terabyte hard drive and connected it to my Bluesound and started to sample a few cd's that I've burned to it and I must say that I'm pleased.  It's all been pretty straightforward and painless.

I live in a one-room place, so I don't need a multiple room feature.  This is for a strictly a 2-channel rig.

It seems that I'm digitally squared away for music.

What can and will Roon add to this setup?