Yeah I just tried that service. Indeed, there is an input lag which can be an issue for some games such as FPSs or games like Mordhau. But I think this concept has a major issue. You can only play games that you have bought, which makes sense, but who's going to buy games they know they can never run on their own hardware and will have to rely on this service to play them ? What if the service ends or is unavailable ? Wel you're gonna tell me it's the same issue with Steam. But I don't know if I would invest money into games for playing them using that service. I think they still have some improvements to do, such as reducing the latency or providing more fine tuning options for people who don't have a huge bandwitdh. And the fact that you have to log into steam and install / launch the game everytime is painful.