I'm confirming the sentiment is accurate. Background: using Git (involuntarily) since 2010, did my fair share reading it's source, put honest effort into reading it's man pages, so. Jujutsu _is_ a revelation and I'm moving to it every time I'm able to: the git repository stays the same, it's the jj runs it now.
If you ever tried to have multiple WIP features merged in a Git working copy, I have a great news — with jujutsu complexity of the workflow increases linearly over the number of branches, if ever: it's almost trivial. Otherwise I very much encourage you to try — in and of itself the workflow is extremely effective, it's just Git makes it complex af.