* Buffering was nerfed/broken some time ago. I can no longer watch 720p+ videos on youtube at all.
* Changing video quality now has a long and unavoidable delay, and often fails outright.
* Google are evidently uneasy about the profile name that I signed up with, and have been repeatedly nudging me to change it. I don't know how to reassure them about my choice.
* Advertising. Everywhere.