I’m running both in parallel at the moment and they both have a place for me with each one having pros and cons.
TIDAL is a long way ahead in terms of songs availability for the genres that I like (library), suggestions (Track Radio, Masters Track Radio, Artist Radio, Producer Mix, My Mixes, My Daily Discovery) and UI. Ignoring MQA for a moment, TIDAL FLACs deliver a really engaging sound. In fact, it’s engaging to the point of distraction if I am streaming TIDAL all day in the background while I work. There’s an emotional pull to the music. Having said that, it can become fatiguing after a while.
MQA works really well for me for offline listening on my DAP. The space saved on my micro-SD card for large offline TIDAL playlists is substantial. TIDAL’s management of the DAP’s filesystem for offline content appears to be a lot better than Qobuz so there’s far less lag in my DAP.
Qobuz as a desktop app is hard work, to be honest. Coming from TIDAL the UI is all over the place, there’s a distinct lack of useful suggestions and I find it difficult to find songs that I like.
However, the sound from Qobuz is like velvet, it’s like honey. So smooth and endearing. There isn’t the emotional pull from the music that I get with TIDAL. The music doesn’t distract me while I’m working. I can listen to Qobuz all day long and enjoy having the music in the background.
So, to summarise: TIDAL for a quick engaging fix of music, Qobuz for all day relaxing listening. I like both, but for different reasons.