Thoughts on Rainway self-hosted web-based game streaming (now v1.0)

So I heard about https://rainway.com/ a year or two ago, and evidently now it is being formally released as a browser based game streaming service.
They make it seem so simple, but I'm curious how well it works across the internet: "Press a button. Play a game. Use your existing hardware, All your games in one place, Ultra low-delay streaming, Play anywhere right inside your browser"
Has anyone compared the performance of Rainway to other game streaming like Steam Link (Android) from an external off-site network? I couldn't find such a written or a Youtube video of it. I'm not so interested in home streaming, since I already have Steam Link for that.