A few years ago I tried darcs and wondered why all version control systems didn't work like this. The only thing that stopped me using it full time were reports of poor performance, and the absolute lack of tool support. Today, both of those problems are history. darcs has been joined by git, Bazaar and Mercurial, and while no system has such an obvious technical edge over its competitors to be declared a deserving winner, it looks like git has the upper hand in mindshare thanks largely to github

Meanwhile, at work, our system administrator lost weeks of productivity and large chunks of his hair trying to solve our cross-Pacific Subversion performance problems