Eh, I don't care for the flu shots but have no small children and what seems like better luck without them. No, they don't always get them right as they have to decide what will most likely affect us ahead of time and then prepare flu shots accordingly. I'm pretty healthy and as I said, have no small children and all the school germs, etc. related , so I skip it.
Please, please be sure to vaccinate your children, though!
*End opinion.