A friend of mine works in a call center that will be supporting win8 from Friday so they have been working with it for weeks at work and everybody has had to have an mandatory upgrade of their home computers to allow them to learn it fast.
He says at work it is great, simple icons for all the tabs and windows he needs, it is nice and simple.
At home he is fuming, there is major problem with the drivers for a huge commercial laser printer he owns which he uses to produce club newsletters and other bulk mailings. The win7 drivers don't seem to work correctly.
He listens to a lot of streamed radio on the internet while he is working, he goes onto the webpage to start the stream, he then goes onto something else and the stream stops until you click back onto the streaming window and it starts again.
Coupled with the fact that most of his software doesn't work with metro, it just drops hiim back to the desktop anyways it is a bit of a mess and he can't wait to drop the whole thing.
The main problem is that win7 was both a great success as well as causing major problems.
Success as it showed that they could still make a decent OS and the problem is that win7 breathed a new lease of life into a lot of PC's that meant their owners didn't really need to upgrade.
Coupled with the fact that the tablet market is booming due to the fact they are just easier to use for a bit of causual browsing and occasional email which an awful lot of PC's were being used for and they paniced.
I cannot see win8 though taking off, Nokia is their mobile partner and a lot of under 30's see that brand as so 90's and MS still wants their $50 per phone which will always outprice the android phones a Google gives their OS away.
Given that MS have already gotten cold feet with win8 with the announcement that win8 will also carry android functionality and you are looking at an OS that doesn't really appeal to most users as win7 is perfectly servicable for PC's and why get it on a phone when you have the mass markets of Android and IOs to choose from.
I wouldn't be surprised if win9 will be here in under 18 months and come in a desktop flavour with the metro gui running in a window when wanted and a full phone flavour.