I read through the really long technical article about this from last week and it looks very interesting. But the proof is in the pudding, as they say, so it's

I read through the really long technical article about this from last week and it looks very interesting. But the proof is in the pudding, as they say, so it's cool to see it's a real product that you can try. Has anyone taken the time to experiment with this yet? What's your feedback?