Free will on or off?

I have free will turned on. It can be annoying, but it is much better than having it turned off. When it is turned on, my sims tend to do annoying things such as eating when not hungry, preparing food and then never cooking it, or reading books and then not putting the books back. In previous games, I have turned it off, but then my sims just stand around like zombies, so I had to turn it back on quickly. I think they've even missed a few days of work.

I guess I would rather go with sims that are out to get me, than zombie sims ;)