I'm using Win 7 PC & Laptop, and 2 Windows phones - Nokia lumia 920 & 610.

I find them all effective and easy to use in their own contexts and purposes.

Maybe that means I'd not have any difficulties adapting to Win 8,
despite all the bad press and adverse user complaints.

But so far I've had no need to bother purchasing it,
regardless of any of the discounted upgrade offers ???

Btw - between us, me and the mrs also own 4 Android tablets,
and she is virtually surgically attached to her Samsung Galaxy 2 smartphone.

All very useful,
but the quality of the android experience depends on the processing power of the individual device
and the limitations of the installed version of android.
Glitches and crashes are fairly common on our cheaper android devices.
My Nexus 7 [1st version] is the only one that is truly reliable.

So, I'd think we have a fairly sensible and objective view on present operating systems..