I'm a longtime Emacs user and I dabble with atom and code. The main thing that I get out of GUI editors is that extensions generally just work. I spent a lot of time debugging emacs extensions to the point that I kind of expected extensions to not work right when I install them - especially ones related to autocompletion. Nowadays I use spacemacs to keep my package management sane, but it's inflexible and complicated.
I miss things from Emacs sometimes so I keep it around. I miss macros, I miss some of the more stellar Emacs packages (Tuareg for OCaml and Cider for Clojure in particular) but I do a lot of editing nowadays in Atom and Code.
I'd say that's almost true. I'm also a longtime Emacs user. My work development is C# on Windows, so I've dabbled with VSCode and Atom.
My experience so far is that extensions on VSCode "just work", but they're scarce, and difficult to discover and install.
My experience with extensions on Atom is that they are numerous, cover a very wide variety of needs/wants, and that they frequently break when the main editor updates. I haven't been able to install/update the Omnisharp extension successfully since the npm debacle a few weeks ago.
I dabbled with Spacemacs, and it seems nice, but I couldn't work out how to migrate my existing extensive org-mode customizations without digging deep into the Spacemacs package management system.
I miss things from Emacs sometimes so I keep it around. I miss macros, I miss some of the more stellar Emacs packages (Tuareg for OCaml and Cider for Clojure in particular) but I do a lot of editing nowadays in Atom and Code.