The ratings on this app is completely wrecked by trolls. The same way the Apple app is wrecked. Like you said, the disproportionately high number of 1 stars is an easy give away. The app is fine. I subscribed to Tidal HiFi for about a year before trying out the competition, like Qobuz, and I can tell you that Tidal has the major artists and a few exclusives on top of that. The Tidal app was extremely buggy and inconsistent early on, which could explain a lot of the low ratings too. Tidal are however more active in bug fixing and development than most apps, I'd say. Today it is a stable app with any feature you'd expect for music streaming. The catalogue sizes listed on Wikipedia are pretty much useless. No one is verifying any of those numbers the streaming services are claiming. I stopped using Qobuz simply because that is a service with too many missing artists and albums. I'm currently back on Spotify to see if I'm missing anything, but, I've noticed that the Spotify Windows app feels like it's stagnated in development.
If you have network issues giving you trouble streaming in lossless you have the same choice with Tidal as any other app, you can pre-load music for offline listening.
And to the claims that little or none of the music is in actual lossless format, I say bollox. I never came across an album I listened to that wasn't available in the lossless FLAC format.
TL;DR your 7 point list is really not more than a 1 or 2 possible points list.
My personal opinion about the value of Tidal compared to the competition. The only direct competitor is Qobuz, which also provide lossless music (they even offer an even more expensive 24-bit alternative if you have too much money to give away), but Tidal has a lot more big artist and albums in their catalogue. You will need a decent pair of earphones to appreciate the lossless format, but I'm guessing that's a non-issue if you're paying €20 a month for streaming music. So, if your budget allows it, I'd recommend Tidal over any of the other options out there at he moment.