Neither can I.
I have not experienced Win8 myself in deep yet, but the missing start button in the desktop mode and the completely idiotic routine for shutting down the computer are absolute nonsense.
The Metro screen is nothing else than a mix of widgets and icons. And worst is, it really gets in your way instead of getting out of it like the same functionality would if put on the desktop. So, where's the innovation in that? KDE has had this feature for years (the dashboard), only that Win8 has tiling on the "dashboard" and really, really gets in your way on a desktop (and laptop) workspace instead of getting out of it.
And the settings are cluttered over too many different places.
It still does not respect existing OSes when being installed and it still will not setup a separate user account by default. Most third party software will install some additional crap if you don't uncheck it and their one-stop-software-center is a really old hat. It has been an old hat for many years when Apple invented it on iOS.
As for the "dual boot or not" issue, having been p... off by Vista, I had dual boot for a while as a fallback option, but after first booting PCLOS I have never booted into Windows again and soon freed the valuable space for more useful things. Before finding PCLOS, I was not so sure I could ever really ditch Windows as the other distros I had used were less easy to use. So, YMMV when you start with Linux. But of course it will be quicker to like the new found land if you just "burn your boats" and exclusively stay in Linux.