But I do wish graphics designers would learn to leave well enough alone. People don't want their UI to change on them every 5-10 years. They want to learn one UI and stick with it. The Windows 7 UI was just about perfect; if they had kept that UI while changing internals not visible to the user, they would have had far faster adoption of Windows 10. As it is, I know many people who stuck to Windows 7 for as long as possible until the free-upgrade period was about to run out.
EDIT: I'm not saying there weren't things about the Win7 UI that couldn't be improved. The new Terminal app is immensely better than Conhost. IMMENSELY. But that's an incremental change, not a UI replacement.