That looks like it would be useful for typesetting, but it seems way more heavy than necessary. Do you use it, and have you found it to actually be helpful?
I used it on one project. Whilst it was quick and easy to get the layout done I do agree with you on it been heavy.
One thing that I did get from it was exposure to some decent CSS. I'm confident that my future projects will benefit from having used and learned from their techniques.