I've said this in the past on HN posts about mercurial but it bears repeating: if you had bad experiences with mercurial in the past, I strongly urge you to spin up one of the latest releases. Engineers at Google, Facebook, Mozilla, and Unity contribute regularly and mercurial has become more feature rich and substantially faster over the past few years.
Mercurial does everything that git does (in fact, you can pull from or push to git repos with hg-git), has a UI that's easier to learn, and has online help that is terse and helpful. As far as killer features go, check out phases[1] and changeset evolution[2]. The latter is still at alpha level and the UI is unstable, but I use it for day-to-day work and find it incredibly useful.
Mercurial does everything that git does (in fact, you can pull from or push to git repos with hg-git), has a UI that's easier to learn, and has online help that is terse and helpful. As far as killer features go, check out phases[1] and changeset evolution[2]. The latter is still at alpha level and the UI is unstable, but I use it for day-to-day work and find it incredibly useful.
[1] https://mercurial.selenic.com/wiki/Phases
[2] https://bitbucket.org/marmoute/mutable-history