Niku opensourced their project management software

I’ve read these days in the IT press, that Niku provides their project management software named “Workbench” as Open Source now. It’s called OpenWorkbench: http://www.openworkbench.org

According to their info it competes with M$ Project.
Does it? Any experiences?

PS: Ok, no Java tool, but I think several of you deal with project management software anyway. It would be nice if some people would need such software for larger Java games… (I know, it’s dream, because most of us here are busy with doing another Java pacman in their spare time.)