Funnily enough I had the opposite transition. Sorta. I didn't mind Windows 7 so much, but Windows 10's user hostile behaviour makes me wince every time I have to use it. And I have to use it for work because of Microsoft's own hostile decisions (Skype for Linux can no longer do group video calls? Seriously!?!).

I start a freshly installed Windows 10 instance on a desktop grade i7 with Nvidia 960M and it takes minutes for me to be able to even type in the search bar, ... because Windows decided to commandeer all my disk IO for Windows Updates that I can't disable. At least Windows 7 acquiesced to my wishes.