Too much clicking in the IDE, though I guess this complaint goes more towards Eclipse than IDEA :).<p>But Emacs (and Vim) offer you superior text editing, if you can be bothered to learn it. Semantic navigation, convenient incremental search, semantic editing, keyboard macros, etc. etd. - you can do much more in fewer keystrokes, which is important in keeping yourself in the flow. In Emacs, you get all the benefits of highly optimized keyboard navigation and editing for every task you&#x27;d like to do - writing code, managing files, inserting simple and complex code templates, managing projects, complex work with Git repositories, etc. - and it&#x27;s all consistent - you can do the same regex incremental search in e.g. your commit logs as you do in your source files.<p>My overall personal impression about Emacs is that it&#x27;s the most efficient environment optimized for anything text-related out there (especially if you switch to vim keybindings for text editing and navigation, which are arguably smarter).