kde

Some places where I've worked have used SVN for version control, and while the supposed simplicity and centralization of SVN can be nice in certain situations, SVN can't hold a torch to Git's speed, flexibility, and ubiquity (nowadays) for source control. Not to mention SVN doesn't have real tags or branches, just quasi-directories that can easily be mangled into a horrific mess (I see this quite often).

I've had to use some incredibly large (10,000+ revisions, 2GB+ total size) SVN repositories, and while I've managed them using git svn sometimes (see Switching an SVN repository to Git using git svn), it's much nicer to be able to migrate the entire team from SVN to Git so everyone can work on the repository much more efficiently.