I finally gotten around to trying Stadia today and so far, really unimpressed.
Sure its streaming 4K and hitting up to 50Mbit, but its all over the place. It works fine for so many seconds but then hitches, blocking, audio stutters and random controller lag. That over Plusnet.
On my Zen connection which is faster, its even worse. For some reason it wont even crank up the bitrate there at all, its almost constantly blocky.
Also the audio on the game I'm playing, Gylt, is totally wrong. Its not using the centre speaker at all and sounds generally don't seem to always be coming from the correct speaker.
Not a great first impression.
[UPDATE]
And now its suddenly turned into a blocky flickering mess and lost the connection entirely. Done it twice on both Zen and Plusnet.
The strobing effect has actually rather messed with my head as I can't focus properly on my monitor now.