Well, count me among the frustrated. I was one of the first to get a Book. It's the first time in more than a decade that I've gone up in size on a laptop. I love the idea -- when it works, it is a great machine, favorite one I've had in many years-- but the bugs are frustrating. During the early days, I had blue screens, sleep issues (staying on in my bag, getting hot and wasting battery), headphone jack issues (have to troubleshoot it) and sometimes the trackpad/keyboard would be non-responsive after waking up. Battery life was pitiful compared to the advertised ratings and the results reported in professional reviews. But Hello worked beautifully (so well that I've told people I consider it a prerequisite for new machines!) and bugs were disappearing. Most of the problems were gone, except for the disappointing battery life and some blue screens.
Now, after the big update:
* the camera frequently fails to turn on for Windows Hello
* on waking up from Sleep, the keyboard/trackpad are non-responsive. Quickest fix is to detach and re-attach the screen. Given that Sleep was a focus for this bug update, I'm disappointed.
* my OneDrive connection got lost and had to be resynced (this happened once pre-update too, very annoying)
* I had no audio through HDMI for a presentation using equipment I use every week. Now I have to set aside time next week to troubleshoot.
* I had previously set up my Book to hibernate when I press the power button. Sometimes it seems to go to sleep now instead of hibernate.
* And yes, I've had a blue screen too.
Microsoft folks : I hope you're reading the forums, because this is really disappointing, especially for a longtime loyal user.