I have been very impressed with Unfuddle, the hosted subversion and project tracking service. For instance, they made a change a while back which meant that my Unfuddle hostname would change, and I was notified in a timely fashion, and the let me know exactly what was going on. It has always struck me as a well-run service.

I never really used it much, however, and never used any feature but the svn repository itself. Since I just installed Redmine on my own hosting, I figured it was time to move my one Unfuddle-hosted project over to my own hosting.