I upgraded a few days ago, and it went fairly smoothly. Right at the end, it gave me a black screen with just the mouse pointer and nothing else, but was able to bring up task manager with ctrl-alt-del, somewhat nervously restart and then everything was alright. Since then it's been pretty smooth, but for an OS that's (apparently) designed for a multitude of devices, it feels a bit harder to configure to use at 2-3 metres (ie, from a recliner/couch) than Win 7 or 8. Seems to run smoothly enough though, and having a start menu back is nice (although I still prefer Win 7's setup). Also nice that the mouse ending up on the edge of the screen doesn't bring up a menu.
All up, it's reasonable enough, but I wouldn't want to have paid money for it (it'd effectively be paying money, in most cases, to remove stuff that I didn't want added in Win 8!), and a little scrappy in a few places.
GraphicX, on 09 August 2015 - 09:25 AM, said:
another couple of issues i've encountered include the machine has turned off & back on as if the power was cut & also when i launch a game the screen now redoes/re-registers the screen resolution which it didn't do previously.
This has happened to me once too. Made me a little nervous, a little less nervous now that it's probably not just me (ie, my motherboard/PSU doesn't have a dodgy connection somewhere), but it's a bit of a worry in terms of stability.