I have used many of the well named and a few of the lesser known tools and this certainly is the best I have tried. I picked it up and started using it, no need to learn scripting languages to add content etc. races, items, classes, its all there already. My group has just started the new pathfinder campain, so the fact and all the data sets are availiable for download is an added bonus.
From what I read on their web site about the GM Tools software, it sounds great. I mentioned it to my GM and he became slightly hysterical... can't wait for that...
Nice work guys, and thanks.