Surely no worse than Vista

The simple answer: I finally opted for the 8, largely because the main performance tests attest + - equal to 7. It is known that 8 will benefit from multiple updates => it can only get better !

Feedback after more than a year:

To:
+ It starts very soon (end of it also depends on the config!)
+ Very "user friendly" that I "mad men" a little ... (I have vista)
+ No problem with my main programs (dxo, pscs5, notepad ++, wamp, ...)
+ If you do not know skydrive, you learn probably lapprécier!

Neutral or suspicious:
~~ On metro interface: it has pros and cons of it has ... No doubt: sy is done! But ok, it wasnt probably not necessary in my case (strictly NOT touch use). In practice you can organize the "icons" or species of touchpads as you see fit. We found there.
If I want to do something other than just launch a program, I switch to the desktop.
It stops there! In short, with a minimum of flexibility there is not unhappy!
~~ Like microsoft offers skydrive instead other clouds, it offers music (way spotify), the 'wolf' is your home! But let's be honest, this is not wrong.
~~ I was initially annoyed by the inability to change the white background a bunch of apps (as was done very simply with a right click on the desktop in older windows in "cover"). And that costs at least 1 star (although post I've made).
~~ I wait yet perfectly integrated app for Google and its various services: metro could become then become a kind of dashboard with large display of the situation in real time. About, Lagenda metro can already manage your google calendar, contacts, etc.