Ok so I was able to sign in, but either I'm an incompetent boob or the app essentially doesn't work. I rarely actually get sound. Back buttons don't work. It's super slow. Clicking on "show all" (as in albums of an artist) has no effect.
+1 ... to some of this. I haven't had too many sound issues, but the BACK button doesn't work, unless you click on it a number of times, in which case it returns you to the top-level TIDAL screen. This makes it extremely difficult to browse and sample music.
The normal TIDAL sort options are not available, so sorting by last added or artist name isn't an option. Again, makes it very difficult to use.
And, yes, the TIDAL UI is slow.
I've reported these issues in the past, but updating the Manic Moose TIDAL UI seems to be low priority.
If you want to really explore TIDAL, consider using Roon. The Roon app on the BDP (with the latest BETA) sounds good and browsing your local collection and what's on TIDAL is an amazing experience.
No, Roon isn't free and, yes, Roon requires another PC/Mac somewhere to act as a library server.