Finally, I have managed to get Windows 10. And the good news is it was so easy to install on my Mac (not like my PCs).
Windows 10 scaling features work well, unlike Windows 7, 8 and 8.1 so I can finally use the high DPI of my Mac's display with Windows. I've been waiting for some time (since August 2014) to use Windows on my Mac (I had Windows until April of that year on my older MacBook and I've always had it on my Mac mini as well) and it's nice to finally have it again!
My tablet has just finished upgrading to Windows 10 as well due to the fact that unlike the installer Microsoft has been giving out, 'burning' a plain old ISO to a USB drive on my Mac works.
I will finally get round to doing my review. In general, I'm positive about the experience I'm going to have with this OS, considering Microsoft's tick-tock cycle of good OS (ME, XP, 7, 10) then bad OS (2000, Vista, 8).