It also impressed me, as I'm not sure I'd have that sort of dogged patience. Samba is one of those incredibly useful pieces of open source software that sometimes I feel I take for granted.

I won't take it for granted now.

As a side note, the documentation has been pretty darn good too. I set up an AD server in Samba just from the docs, with a bit of additional help from Stack Overflow. It was only after I had finished that I determined that I could do what I needed with just the basic Samba user/groups. (My needs were not complicated enough to justify the extra overhead of AD.)