UPnP & macOS / iOS recommendations?

[Snoopy8]

First impression. Bubble UPnP is definitely more stable and comfortable then the OpenHome app. No hiccups so far even with long playlists.

(Temporary?) Verdict for a working and mostly reliable macOS / iOS solution:

Media server: Twonky
Media server add on for direct (shared) streaming of Tidal/Qobuz from the Mac mini server: Bubble UPnP (needs Java 8)
iOS control point: Lumin (alternatively Linn Kazoo)
macOS Control Point: Linn Kazoo (alternatively ?)

If this solution turns out to be stable and more more convenient than Spark, the first step is made for me to think about switching to DOS2

Most interesting observing your trial. Any comments about sound quality?