Ever since I've been using subversion as my choice of source control, I've also used Trac to help keep track of all the jobs and information I need to do for any of my projects. Trust me, without Trac the THN code would be a complete mess and very buggy.

I've come across a new management tool called Redmine that functions in an almost identical way, and seems to be as feature complete as Trac. The only difference being is, that it's coded in Ruby, rather than Python. Also it seems to have better support for multiple repositries than Trac. (And also I can migrate my old Trac data across)
My question is, has anyone used Redmine at all? (If you have used, please tell me what you think of it)