What I also have not used is vim emulation, though I have a vim background
As mentioned elsewhere, Zed is still very configuration-dependent to get the full power of it, and a lot of its functionality is never discovered for that reason
What pushed me to try it was Ollama integration which is not an afterthought, then I realized I loved it _way_ more than SublimeText, especially on performance, at first, then everything else once that won me over
I have ~10 running instances at any given moment, and >99% of the time never feel any lag, whatsoever
Another unexpected benefit is that terminals, code editor panels, and assistant chats, get to be sized and fit wherever you want, so it is also kind of a window manager... I often have more terminals open in Zed than in the Window Manager of the OS itself