"Done is better than good", IS IT?

I once heard "Done is better than good". I was so in love with that saying back then. 

But is it? 

When you have so much to do, and the bar is high, is "done" really better than "good"?

Now it's nearly over (my part of a bigger project), I could say that it was a blood-sucking work, actually a burden, to start over the process: from learning to implementing in practical situations.