I received a package in the mail yesterday. Kind of forgot I had pre-ordered the Google Stadia back in June. Since we are a developer I thought I should have one. I have to say I was VERY skeptical. I had ordered a Steam Link in the past and expected the same laggy performance.
So I hooked up the Chromecast, installed the phone apps. Our router is in the center of the home on the first floor and the TV I was using was in our basement entertainment area, so wireless. I launched Destiny 2 and it instantly started playing of course with no installing. I experienced zero lag or rubberbanding, and the graphics looked great! It was actually pretty amazing.
Ultimately I wished the subscription service was more like Netflix where you have unlimited access to a game library but that's really a dream service I'm not sure will ever exist. I've heard with Stadia the subscription won't be required to play games which makes it more like an Xbox Live or Playstation Plus service which makes sense.
Overall I must say I was impressed with the performance. I'm looking forward to their title choices expanding and I'm optimistic for what's to come from this.