The major benefits to me is that git is fast, branching is cheap (and yes, cheap branching does change how you approach a project; I never did figure out branching under cvs and apparently, it's just as easy under svn as it is under cvs) and the merging is incredible (I'm using it to maintain two versions of a PHP project, one for MySQL and one for PostgreSQL: http://boston.conman.org/2008/08/07.1 )
Granted, if you are used to a centralized workflow, then I can see where git might be different enough to cause some strain. But even on a one-person project (and I have plenty of those), I found git much easier to use than cvs (or svn for that matter) even though it took some time to get used to the decentralized nature of git.
I was still in a "centralized frame of mind" when I started using git. I do development on one machine, but deployments go to the server, and for the occasional oversight, bug fixes that happen on the server need to be pushed back to the development machine. git didn't work quite the same as cvs in that reguard, and thus, I had to change my workflow just a bit.