Emacs seems like a powerful customizable text editor that can do anything.
Here are some problems that i have with it:
1) Emacs has its own unique keyboard shortcuts
Example: need to close emacs? “hold ctrl and press x then hold ctrl and press c”
It is inconvenient to have different set of keyboard shortcuts only for text editor, no matter how great it is, you still use it on a system with other software.*
I agree that on its own this is not a big problem, however combined with others it is.