Have been playing around with the Innuos recently and as it is LMS under the bonnet have been able to reproduce most of the functionality I liked (but never fucking worked) in Roon.
Can now play to Sonos endpoints from Innuos (LMS upnp plugin)
Can play directly from BandCamp (LMS ‘bands campout’ plugin) @Gyroscope
BBC Sounds - can now stream 6 Music for longer than a pico second.