Good product. I have been experimenting how to automate it from C# and the documentation was pretty helpful. Took me a while to realise that I needed the beta for XML output though :-)
It would be an even better product if the XML output and the LOG output were both available at the same time. The XML output is great for automation but the LOG is essential for tracking down connectivity problems. As I see it the XML is just a structured transformation of what you otherwise get from stdout.