I'm not hyped on this... It sounds like Playstation Now / Remote Play... which works with some games fine and not so great with ones that need quick timing and fast reflexes. It's fine as an addendum to an option you can play locally.

And even then, while PSNow lets you download games to your system to improve performance, I'm cancelling my subscription. It's not worth it, mainly because there isn't enough content on it that I don't already have, and this Google system sounds like it'll take a while to even catch up with that.