I have it on my PC, and its fine except for a silly issue with it not finding the internet after a RESTART, but a shut down and start up sorts it out, and I only restart on a update.
My mom's old HP G72 laptop has it now, and initially it was a pain and my Mom wanted it off if it didnt get sorted soon, but after finally getting the updates on it went all smooth and my Mom is all happy with it.
Not a bad OS, I like the Start Menu as a box rather than a whole screen (ala Win 8.1) and haven't had any noticeable performance hits myself...
... oh, and no US agents been knocking on my door either
Sometimes keeping an eye on your stats is not a good thing
Some things are painfully obvious, others must be made obvious... painfully