Being able to search and replace all instances of a string in a text editor definitely speeds up the editing process. In an editor like Atom, the process is mapped to a keyboard shortcut but I find myself still reaching for the mouse to kick off the Find all and then Replace all process.
With Vim, it’ll take some time to remember the command for search and replace, but I think the implementation is clever and I really dig how to process can all be done without reaching for the keyboard.
You can even get Vim to provide a confirmation prompt for each instance found and asks whether you want to actually replace it.