2013 Kia Optima Hybrid... yay or nay?

Today, my husband and I went looking for a car. We test drove a 2013 Kia Optima Hybrid and we fell in love with it.

The only thing that my husband wasn't sold on was the fact that it was a hybrid car. We have three kids that are heavily involved in sports and we live in the mountains and we are constantly on the go. We have a 2006 Chrysler Pacifica and it sucks on gas when we do all this running around. The optima seems like we would have to put less than half the gas in it as we would our Pacifica which in the end would save us a lot of money. But the hybrid part of the car is freaking out my husband. We don't know anyone who has a car like this. Can anyone give us some inside info on a hybrid car like this and your thoughts. It would be greatly appreciated! Thanks!!