In an age 5 war it's pretty useful, but you don't get an instant bonus from it. I'd say it's excellent for treaty games.
Early on, it's capable of keeping up with a fish boom but not quite as easy to pull off.
Don't use it as a mill replacement, have 5 or so villagers gathering from the herded animals so that the herding never runs out, as sheep die, remake them and you will be continuously gathering from the sheep.
Thanks to all those that signed the petition to get me unbanned
here.
And special thanks to smashnbash for making it.