Windows 8 has been out for several weeks. From what I've read sales appear to be good. User reaction has been mixed (mine included). This comes as no surprise considering the radical change Microsoft has taken with it. I've been using early releases of Windows 8 for several months. When the final release came out, I installed it on one device. Now on to the likes/dislikes.
As I mentioned, I have only installed Windows 8 final release on one device. That device is an Exopc tablet. I have two $15 upgrades that I don't plan on using. The reason being despite how well Windows 8 runs using a conventional mouse/track pad & keyboard, the touch screen experience is what makes Windows 8 shine.
The EXOPS runs a single core Atom N455 processor with 2GB Ram and a 60GB SSD. Though it is a tablet computer it's essentially a 2010 vintage Netbook internally. The touchscreen is only a 2 touch point screen. Despite all of it's shortcomings compared to modern hardware it runs Windows 8 amazingly well.
At some point I will get a larger notebook or desktop computer with a touchscreen running Windows 8 Pro.