IDK why people are so negative. I get fast enough internet on my phone data plan to run Stadia. If I can play Baldurs Gate 3, Destiny 2, or Assasins Creed games at 1080p with one of those bluetooth phone controllers... it might be okay as a mobile experience.
Will it replace my desktop? No way. But as a portable experience it might have some promise if it runs as well as or better than the AC:O trial they did a while back. I'll happily use my Pixel 3a backup phone as a portable gaming device that gets way better graphics than something like a Switch.
Edit: Yes im aware that my carrier throttles after 50gb/month but the way I view it is that streaming a 1080p 60 game is really no different than the Twitch 1080p 60 content I consume in short bits. This would likely replace that.
the lag is effin terrible, the thought of it makes me cry.