I used my free one-month trial using the Windows app, and it had serious problems, apparently known to Qobuz.
Fast forward a few months and the arrival of a new Roon Nucleus Plus streaming server. I signed up for Qobuz again and am hooked. I have both Qobuz and Tidal running on that server and I can't explain why, but when I listen to the same albums in 44.1/16 (CD) quality, not always, but much of the time the Qobuz version sounds better to me, a little more dynamic, better soundstage, etc. The differences are small, but noticeable. Though I do like the sound of MQA on Tidal, the high-res FLAC files from Qobuz (to me) sound better than the Tidal MQA versions...again, not always, but enough to be noticed.
Fast forward a few months and the arrival of a new Roon Nucleus Plus streaming server. I signed up for Qobuz again and am hooked. I have both Qobuz and Tidal running on that server and I can't explain why, but when I listen to the same albums in 44.1/16 (CD) quality, not always, but much of the time the Qobuz version sounds better to me, a little more dynamic, better soundstage, etc. The differences are small, but noticeable. Though I do like the sound of MQA on Tidal, the high-res FLAC files from Qobuz (to me) sound better than the Tidal MQA versions...again, not always, but enough to be noticed.