I have used it a little at home and at work to check out source code for open source projects.
It is very similar to working with CVS – at least as far as checking stuff out goes. I have used both the command line version and the TortoiseSVN GUI version. They are both comparable to their CVS counterparts, in my experience.
I set up one of my computers to be able to act as a Subversion repository. So far I have not put anything into it but I plan to!
I have a book called Pragmatic Version Control Using Subversion too.
