I just started using autodia on our systems at work.
Within about 5 minutes I fixed a couple of logical errors in the perl parser making it work a lot better.
On the whole it worked, now it works much better at parsing perl.
I just wish we had a nice A3 printer for the diagrams - they are huge, and that is just for sub-sections of the code.
I also hacked at the dia handler last night so that it works completely, very happy with the results.