I used to use darcs a lot. I get it, it's different, it's got some cool mathematical models and UI stuff, git's UI is terrible. I maintain it's not different enough from git to really matter.
And now I have to dig through manpages whenever I want to figure out trivial stuff like "did I forget to add any files in this commit?" (that's
darcs whatsnew --look-for-adds) or "what files are in the repo?" (I recall using some sort of "inventory" command but after a lot of poking around it appears to be
darcs show files-- tricky, putting it in a subcommand).
I'm especially looking at you, bzr users: you have no excuse. At least darcs is trying a different approach to how patches are managed! As far as I can tell bzr is "like the other ones, but slower".