It's fast, light, beautiful keyboard. I'm really happy with it. I googled for discount vouchers when I ordered and got 10% off.
I'd recommend against buying it for Windows use. I tried it for a couple of days just to see what it was like. It comes preloaded with lots of rubbish (including aggressive Norton popups) and no install media. Awful. The base installation took up half of the 128GB hard disk, which seemed crazy. I uninstalled as much junk as I could, and it worked OK for a bit but later my VPN client stopped working.
If you can get an ISO image of Windows maybe you could install windows in virtual box.