Interesting, I've never been an early adopter and hated the Start Screen on Windows 8, 8.1 but that's easily sorted with Classic Shell. I've now upgraded 3 PCs to Windows 10, a Tosh laptop that came with Windows 7 home originally, an Asus eebox 1501 and a HP laptop that came with Windows 7 home too. All have upgraded without any issues whatsoever, even the old eebox. Despite my warnings to wait, my old man also upgraded his windows 7 HP to windows 10 without issues (with the exception of TomTom MyDrive which is a pile of you know what which had issues on other windows versions and does work on my Win10 boxes ok). I still have Classic Shell on W10 and think it's all very usable, I don't use Edge or "Apps", networking is a bit odd as it seems to insist that every network is "Public" and sets up the firewall accordingly (probably paranoid idiot proofing), additionally some settings can be difficult to locate but not too bad. Just like Windows 8 - 10 is lightning fast compared to Windows 7 , particularly at startup, that alone makes it worthwhile upgrading. My Wifes more powerful windows 7 work laptop is still chugging away starting up when I've logged onto mine and started using it. Make a backup (macrium reflect is great for this) and give it a go!