A touch screen laptop does not make a for a great tablet or a great desktop. One reason why Apple does not integrate both. Until someone finds a way to make both a seamless experience it will probably be terrible.
If you mean Windows 8 being a proper operating system a lot of people will disagree with you.
I wouldn't because this isn't RT; it's Windows 7 with a touch UI overlay. 9 times out of 10 I'll go right to the desktop, but there's plenty that Windows 8 does right when using the Metro UI, too.
The problem is that it was forced onto users - which I am sure you and I both fully understand - and frustration set in. When I got my new laptop with Win 8 preinstalled, I made myself learn and understand the nuances. It literally took 20 minutes.