[downquark1]

Upgraded fine on my toshiba laptop (which I dual boot with linux so is no "loss").

Don't like the metro stuff but I can change defaults and ignore it. Earlier reports said you could turn start menu into a more classical view but this seems to be missing now.

I'm quite concerned about privacy so I've disabled most of the data collection "features" I'm not going to sign in with hotmail and so I can't use cortana.
Don't like how settings and control panels are two separate things.
Don't like how you can't select updates
Can't seem to find a way to change wifi network from public to private. Seems a major UI mistake. UIs are more fragmented and unintuitive.
Liking the multidesktop feature.

Was concerned I couldn't find the volume mixer but if you right click it's still there.

I'm not sure how eager I am to upgrade my main pc to be honest.