I moved from WebStorm to Spacemacs. Mostly because although it's great, yet IdeaVim plugin for WebStorm is still lacking many things - any seasoned Vim user would need. Navigating in Emacs is WAY more better than in WebStorm. Another annoying thing is indexing. Searching and finding things in Emacs way faster. Also because WebStorm's code proprietary it takes them months to fix bugs. And they wouldn't even move a finger to fix something or implement new features if they don't see value proposition to sell more licenses.