@tess Darcs has a great UX compared to Git. I really struggled to learn Git after starting with that.
#Darcs can work for personal projects or small teams, but lacks a “GitHub”.
Linus considered it for the Linux kernel, but it doesn’t perform well enough on huge trees.
I used to be a contributor to Darcs I but now use Git exclusively because there’s no getting away from git. Once I mastered #Git it was simpler to just use one tool.