What's interesting about all this is that MS shortened its development life cycle to attempt the one year deployments like their competitors. It would appear to me that they aren't equipped to handle this. 8.1 is not ready for prime time, it fails on a very large number of devices, and even after you spend days trying to get it installed, and even resorting to customer support (like I did), it fails on other fronts (I ended up reverting). I especially loved the part where installing SideWinder drivers caused the PC to infinitely reboot - THEIR OWN PRODUCT.
On the older PCs running 8, it just flat out wouldn't allow installation. A service pack changing hardware requirements? What's wrong with you Microsoft??
Anyhow, I've been running it on my Yoga 13, and am fairly happy on that front, but I did notice a decrease in 3D performance from the HD4000.
8.1 is a slight improvement on some of the UI and disk fronts, but overall, this is a massively botched release. This is perhaps the worst I have seen come out of Microsoft, and I've been with their products a REALLY long time. If they can't fix their stuff by the next release (and if the trend continues like this), I may have to go back to 7, or if they ever find a way to make Linux the dominant gaming platform, I may have to do what I swore I'd never do: move (at least for my gaming PC).
This sucks, Microsoft. Sorry, but this unacceptable on every front. I think Windows ME had a better launch... seriously.
Kudos to their die hard support, but as far as attempting a one year release cycle? F-A-I-L. Microsoft has lost their way in a way I never would have expected...
You win Microsoft... I give up.