I've joined the jujutsu fan club. While it is rather disorienting to use at first, when coming from git, there are some really interesting ideas that can make life easier.

Here are my favorites:

• No more git add ... Every edit is automatically in a working copy commit.
• Similarly, no more git rm ...! Just remove the file and it becomes untracked/removed in the working copy.
• History: you can easily jj undo/jj redo any missteps.
• Stable change IDs: if I edit a commit in git, the hash changes while jj keeps a stable change id.
• No stashing: Parallel work is more natural. This is an extension of the fact that there's no staging area and changes are automatically committed... because of this it's easier to jump back and forth to and from commits picking up just where it was left.
• Conflicts are easier to manage. They are non blocking (no more rebase --continue) and can be left in place as long as you want. When they're edited/fixed, they're resolved automatically.
• Works side-by-side with git so one can always hop back to familiar git commands as needed.
• Also I love that outputs automatically show the shorthand prefixes for change IDs and hashes. Makes for easy cli work... often as short as one letter so instead of jj edit svzwsrrq it's jj edit s. (git doesn't show this automatically though it sorta works by uniqueness, e.g. if only one commit started with a you could type just a... but this again is a package deal with stable change IDs. My current task will always be at commit x no matter how things change around it.