Roon Pluses and Minuses as I see them:
+ Great interface
+ Integration of local library with Tidal and/or Qobuz
+ Common denominator usable with so much hardware
+ Music discovery via Roon suggestions and Roon Radio AI
+ Potential for future development from Roon Labs
- Streaming Service support currently limited to just Tidal and Qobuz
- Investment in suitable hardware to support Roon Core
- Subscription cost ... $119 annual or $699 lifetime
Full disclosure. I'm a very happy Roon user.
Purchased a Roon Nucleus in November. Got lucky, and was able to pick up lifetime subscription just prior to the price increase. Prior to Roon, had been using Blu OS as my principal interface since 2014. Have also used Melco HD. In my opinion, Blu OS is very good. Melco HD has its uses but can be quirky. Roon is a definite step up. But you have to pay for it. Is it worth it? That is for you to decide. To me it is, and the ride is very much worth the fare.