My only complaint so far is that they claim that one of the reasons for creating Idagio is that the main streaming services are track/album-oriented, implying that Idagio does this better. But if I go to an Idagio album (here [1] is a random example), there are just tracks. If I view the same album at Apple Music, the album is nicely divided into works [2], and also annotates each track with the composer.
I do love the ability to browse by work and find matching recordings, though.
[1] https://app.idagio.com/albums/r-strauss-and-brahms-orchestra...
[1] https://i.imgur.com/hAe8ZSk.png [2] https://i.imgur.com/EGkTwSD.png [3] https://about.idagio.com/jobs
edit: Just applied there for a job. I'm curious what they will say.