Tracks::GTD who's using it?

I came to read this forum to get ideas before starting a Ruby on Rails (a web development system) project to do 43 folders.

I found in nearly the last post I read a reference to Tracks::GTD (http://www.rousette.org.uk/projects/).

Being a Ruby on Rails app, you can just install Ruby, then Rails on your computer (Windows, Linux, OSX...) and in a few minutes have Tracks running.

It looks good to me so far.

Who else is using it? any comments or pointers?

Wayne