I used Vim for a number of years (I'd guess around 10), and for the last year or so I've been using Spacemacs. I think there's so much that's great about both of them, and I'll continue to use one or the other, but geez, there's so many niggling issues with both that can be offputting.

A couple of examples. In Spacemacs, the screen regularly goes blank for a while. Or if I have a file open in Spacemacs, close its window, then rename it in the OS, then reopen it in Spacemacs (by double-clicking it in Finder) it reopens it with it's old name. I'm sure there's a way to avoid this, but the fact that it happens in the first place is the issue.