I was a late adopter, also, and git is definitely not perfect. Mercurial did some things better, and at the time, notably, the forest extension. Git's flexibility is a two edged sword and the history rewrite footguns should be harder to use. Git does comes close enough to solving a fundamental problem it will be very, very durable, though. As long as it is used for linux kernel development I expect it continue to be the dominant dvcs.