The more I use it the more issues I find........
Power options like Turn Off Screen and Sleep simply don't work on my Lenovo C440. I also appear to have lost the Touch Screen capability!!!!!!!! This in spite of MS configurater saying that my system is fully compatible.
I certainly won't be upgrading from 8.1 on either of my Laptops any time soon as they're much older, (though still well inside MS' requirements - one has an i7 processor). It looks like MS have got a lot of work to do, this is the worst upgrade I've had with Windows and I've been using it since windows 3.