Bugzilla isn't bug-free (there's an entire Bugzilla development team tracking and patching Bugzilla bugs, using Bugzilla to monitor their progress!), and you need to be pretty tech-savvy to get it to run, but it's well worth the effort.
Every time I use Bugzilla, I think to myself, "Here is a tool that can and should be used by most every organization, a central repository of tasks and efforts that can be searched and accessed and referred back to."
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.