Moving to Roon from other music-management applications is a little like moving to a Macintosh (in its early days) from a DOS computer. Like Apple, the Roon engineers have developed a music ecosystem that integrates hardware, software, and data into one more or less seamless environment. It exposes about as much (or as little) detail as the end-user wants to see (metrics, metadata etc) within a user interface that is rather consistent across devices (laptop, smartphone, iPad). One limitation: although it works very well as a multi-room system, it cannot be mobile. You're tethered to one or more Core systems in your house; you cannot take it with you in your car.
One of my favorite features is "Roon radio", which seems to implement a pretty good "more like this" algorithm. It also has DSP capabilities including upsampling and parametric equalization (to boost/attenuate specific frequencies). I have an extension/app to cast a display to an Apple TV; this exposes "now playing" album art and volume/track controls onto a 43" TV screen in my listening room. You can use Roon with Tidal or Qobuz subscriptions, but not with Spotify or Apple Music (although you can pull a library of stored music files into the Roon library).