We use it for generating some real code here at work.
It just does the grunt work of generating our basic message header and cpp files from an xml that it parses.
I've messed with our python scripts a bit and as someone who has used C/C++ extensively it seems a bit goofy and not as powerful. Those that have used it a lot seem to think that it is pretty swell. I'm sure given enough time and experience I could get used to it.
What sort of stuff were you looking to use it for?