The ability to review and rate games is very much needed, also the ability to remove claimed games wouldn't hurt, stacks on stacks is just annoying and I wish I had read some reviews on it before I claimed it. And can't remove it from my list. Not the end of the world but for other titles that might not be free I could see people being a bit upset that the community can't give feedback on how a game handles on stadia.
Good ways to make the review relevant would be group them by input method, display(Chromecast, Chrome, or mobile) , and ping. I think these groupings are important so people can see how they relate to the review and people with horrible internet can't bash a game because they have bad internet
