I love Qobuz for sound quality. I hate Qobuz for everything else.
Their app is not the best (on Android at least, can't speak for Apple). Lots of weird behavior and even the UI is not great.
Their streaming is slower on my desktop with or without Roon, Tidal much faster to start playing a track. This is with gigabit internet so no problem there.
Their catalog sometimes has weird holes in it. Every service has their problems here but I encounter this more with Qobuz than Tidal or Apple Music.
Too bad, I love the SQ probably most above any other service. Wish they would get their stuff together.

