- Taskbar cannot be pinned to the side on my widescreen monitors
- Items on taskbar cannot be un-grouped
- Cannot show text on taskbar
- News/weather widget is awful, full of clickbait news and tiny Weather widget, which is vastly inferior to having a live tile that opens to a full screen weather app
- Reduced start menu customization (live tiles / grid are replaced with folders that add an extra click)
Other than that I haven't used it enough to comment much more. I have it on my laptop which is mostly just used for gaming, and I can tolerate the taskbar and start menu regressions. But for me, most of using Windows is... using the taskbar and start menu. To take away most of their functionality seems like complete insanity!