Oh, sweet Lord, yes! A few of your points in particular:
1. Default apps for many file formats are ridiculously dysfunctional Metro versions. This means users are cast into Full Screen Hell, showing Beelzebubs re-imagining of a PDF reader, image viewer or music app, designed for those confined in the darkest levels of hell. Escaping from these apps is actually hard. Noone can hear you scream.
Whoever designed the included Metro apps should be chained to a helpdesk and doomed to provide support to elderly computer users who are confused as to why their new computer doesn't work like their old one. And this is coming from someone who regularly provides support to elderly computer users who are confused as to why their new computer doesn't work like their old one. Normally I'd say it's the sort of frustration I wouldn't wish on anyone, but it's exactly what I'd wish on the Win8 UI designers.
4. Settings Schizophrenia. Where is that setting? Full-Screen-Hell-Mode or Control Panel? Or (gasp) BOTH? Oh My @#(&$ing GOD!
Holy crap, yes! The Win7, (or was it Vista?) switch to nested control panel categories was bad enough, but at least you could easily switch it to classic. But this? Two different Control Panel universes with no good way to know what is where? The really scary thing about Windows 10 is that they're supposedly considering doing away with the classic Control Panel altogether and hiding all the system settings in Metro-land.
Anyway, you may feel less anger and pain about the above than I do but the point remains that Win 8's peculiarity (See, I can be nice too) isn't confined to having a start screen instead of a start menu.
The sad thing is that there are actually some things about Win8 I actually like. I've gotten it tweaked enough that the parts I hate generally stay the Hell out of my way. But Windows 10 really, really, needs a global "Disable Metro, yes really, yes everywhere on the entire damn computer" button