How does it compare with powerful IDEs like Intellij/PyCharm or Eclipse? I mean, does it make sense to have an editor that is both good at "code, html and prose" (debugging and refactoring comes to mind...)?
When I last worked on a Java project, I ended up going back and forth between Sublime Text and Eclipse.
ST makes navigating the code more quick and smooth - the minimap takes away the feeling of looking at code through tunnel vision, you can preview files much more quickly, and view more code at once with minimalist full-screen mode settings and multi-column layout. The regex search with active highlighting in both the minimap and the file is also nice, and multi-select is pretty helpful for refactoring repetitive code.
That said, ST is just a text editor, not an IDE - while some features, like autocomplete, are partially compensated for, it doesn't do type checking or follow references across files, so other features that stem from those will be missed; e.g. refactoring across multiple files is usually faster in Eclipse. I would usually do most of my editing in ST, and then type-check, compile, and debug in Eclipse.
