Children 3 and under are free. Adults pay 7 dollars as of jun 2015. Pro: visitors get to climb aboard a fire truck. They also get to hear live calls for firemen in phoenix and see different models of fire trucks in history.
Con: The place is small, mostly exhibits so smaller kids might get bored easily. There is a small play area for children but it was dirty and not a lot to do. Lastly, while there is a baby changer in the bathroom, it is placed high. Im 5 feet and it was my on level with my neck.