Honestly Sony wouldn't have made a better effort even if it WAS in the business still. Doing a fresh start on my 18 month old Vaio to get to a fresh 8.1 install was a 3 day affair of installing Win7, patching, installing drivers, upgrading to Win8, patching, installing newer drivers, installing Win8.1, patching, installing new drivers.
Doesn't sound so bad but combine that with poor instructions, missing drivers, inability for the website to identify my model correctly, vague error messages... it was frustrating and very time consuming. I'd advise Vaio owners to not upgrade if their system is working well as it is. Or pray that the Win10->Win8 rollback process works despite Sony's drivers' best efforts to break it.
Biting the hand that feeds IT
