Yeah, I got it working too. It's just all the popups, attempts to install malware, and horrible javascript isn't fun.
So much nicer when it's on youtube and I can watch it on my FireTV
"Completely unusable"?
I use Chrome with the ad blocker installed, so there aren't any issues with pop-ups. No issues other than mediocre quality... so it'll have to do for now.
Let me know if you find something better. I've been looking around.