Will this thing behave nicely when I put it on a machine which already has grub and several linux partitions? Or will it insist on killing grub or even do worse stuff to my machine?
I would assume it kills Grub. I haven't tried, but Microsoft will most likely demand you use the Windows boot loader as they usually do in previous versions. Then you can probably re install Grub and set all of them back up together.
I was hoping that it wouldn't kill grub but unfortunately it's just like before. My kubuntu partition lies idly as I haven't bothered re-installing grub yet.