Has anyone successfully migrated VSS 2005 over to SVN?

Question

I've been playing around with SVN for the last little while and have come to love its power and user experience and that we can tie it into our bug tracking system to simplify everyone's lives. So it's come to the time that we've decided to migrate our VSS 2005 setup across to SVN and I am now coming unstuck.

It seems there are a number of tools out there that claim to be able to complete the migration from VSS 2005 to SVN, but I can't figure out which is the best one or which will provide me with the most complete transition. I need one that will migrate the full history across rather than just checking out from VSS and checking into SVN.

I found Polarion SVN Importer which looks both powerful and highly configurable, however, I can't get the damn thing to work, it complains that it can't pull the file list from $/ in VSS. If I run the same command it's tripping up on manually, everything seems to run okay, so I can't figure it out.

Has anyone successfully migrated their source from VSS 2005 to SVN and if so what tools did you use and what were your findings? Any caveats or gotchas would be most useful so know as well as anything that was useful/surprising or was a let down or just plain misrepresented.