Why would I need Roon?

I had been researching Roon since January of this year and finally made the purchase 2 weeks ago.  To me, one of the best features is the speed in which it can access music from my NAS or Tidal. There is literally no empty air space while it accesses your selection or picks the next song to play. 
Other great features include:

Playlist continuation....after your playlist is completed it continues to play music similar to your playlist and if you don’t like a track it selects for you then you can skip it. 
I have music on in the background while I work and I select a playlist and it plays all day based off the playlist I selected with new and similar music to my playlist. 
The sound quality is significantly better than I was getting through Sonos using my portable hard drive. I’m still using Sonos in some zones and the sound is vastly improved. 
Roon easily plays all types of files including DSD which was not easily accessed before my purchase.  
I don’t have a separate dac or streamer I just use Roon for everything.  
Best purchase I have made for my system easily.  
Woods

I have Amazon HD which has a good interface until you try using it through Bluesound.  I would switch to Tidal and add Roon but not sure I can import all my selected music(called My Music in Amazon).  It is literally thousands of songs.  If somebody has done this let me know.  Otherwise, an extensive winter project perhaps?

unless roon is that much better.

it is.

I'd happily go back to Roon if someone could tell me how to make it sound as good as Audirvana and the Bluesound Node. Both sound much better.  And that's what's most important to me. 

I’d try Audirvana if it would run on an minimalist OS designed specifically for music playback instead of windows or iOS. That could be why Roon sounds better to me.