I bought one game, Outer Wilds, got a free code for Phoenix Point, and have picked 4 free games (Shadow Complex, Subnautica, Mutant: Yero Zero and Celeste).
1. They still dont show installation sizes, other then with the workaround (start installing a game, pause the installation, go uninstall, and there you can see the full installation sizes).
2. It doesn't seem to consistently display info about which games that comes with the Denuvo DRM or not.
3. I'm still not sure if Outer Wilds has cloud saves or not.
4. For some reason, the Subnautica devs patched in a requirement to run the game through the client, after release. So now I have to use a workaround with launch parameters to run it without. Whey they did so, I have no idea, since the client offers nothing for the game.
5. I have no friends that are using the store, so I have not tried the friend list and the functions around it at all.
6. The layout and display options in the client are non-existent. I would like a compact mode at least, and I want it to default to my library. But of course the client doesn't have such basic features.