Hey, it's a good OS as performance goes, no objection there, it runs good, except for some dodgy drivers for a shitty mobo (I'm looking at you ECS, you pile of shit, my aunt made my days a sample of hell because of you). They did a good job with how it demands resources and now it accepts SSDs and the defragmenter sends TRIM commands to SSDs and defrags HDDs, good job. But hell if I like the interface. I don't like how the colours are uniformed and the corners are edged, and I don't even use the GUI, the desktop is fine. Oh wait, I do use the GUI, I press the Desktop tile. Sheesh, am I blind or something? Doesn't the desktop do the same thing as the wonderful GUI? What programs you use you put on the desktop. You want updating weather reports there? Use a gadget, that's why it's there, and I like them.
Long story short, W8 is good performance-wise, but I like the gloss and shine of W7, the rounded corners, the transparency of the bars and the gadgets, and my eye pleasure is more important than 2 more fps in games and a few seconds less when I boot. Enjoy your sales MicroS, I'll only use it on my tablet.