My VAIO working ok so far
We have a Tap20 as our Lounge PC (yes! I was the person who bought one) and the Win10 upgrade went simply and smoothly. The PC seems all well and good and the missus (the main user of such) hasn't complained to me about any of its magic new workings.
The Win 10 Update Check did originally say that the display drivers wouldn't be available, but its capable of playing EVE still (although the missus is a Miner/Manufacturer and so Fleet battles not normally part of her normal day-to-day play) I'm putting that down to fear, or Intel & MS pulling their fingers our in time.
If I get better drivers come November; fine...