Not had great experiences with Windows 10 upgrades.
My Asus EeePC netbook passed the 'Windows 10 compatibility' check - the upgrade failed twice, on the third 'success' the Asus Power Management failed to update (and still doesn't work), the WiFi regularly fails and completely locks the machine to the point where only a hard reset gets it back (so now I run wired at home and WiFi only if I have to). Even from sleep it wakes itself up and tries to install updates (having downloaded them in the background when its been connected to the net via wired ethernet?) - twice it's done this while its been in its travel bag which has cooked it while its been trying to update.
My 14yo daughter got sick of her Win7 machine nagging her so accepted the T&Cs and the upgrade (including all the tracking nonsense) - even though MS know she's only 14 because I'm the designated adult on her MS Live account and they prevent her accessing certain apps without my permission - nor did MS think to email to tell me she'd accepted the upgrade...
My 9yo's HP 250 G3 seems happy enough but that came with W10 out of the box.
Biting the hand that feeds IT
