Eg most UIs have a good File History window, but often finding the appropriate file is a lot of work (and by often I mean at least SourceTree, GitKraken and GitExtensions iirc). Eg something like you need to scroll through commits until you found one that happened to have changed that file, then right-click the file, choose file history.
In Sublime, it's just Ctrl+P, fhmyfilename.
I care about stuff like this (same for Blame, and Stage/Commit (which is usually done great though)) because it's the kind of thing UIs are great at. Both invoking the command and using the output is significantly easier and nicer in a UI than it is from the terminal. Eg it's way more important than an extended "Pull" dialog with all kinds of options I don't care about - I can do that just as easily from the terminal, and my editor probably has a button/keystroke for it somewhere too. So far it seems to me that the Sublime folks got their priorities right. Hats off, will probably purchase!