The car seat that turns into a stroller

Is it worth the $500? I would never think to spend that much on something like that but I have a 2 yr old and 1 yr old plus this newborn coming any day now and I feel it’s such a necessity getting the newborn into and out of the car and having my other two hold onto the stroller so I know they are safe not running around in the street. For now I have a car seat that isn’t a carrier cuz I couldn’t fit 3 car seats in the back so I’m gonna have to carry baby on me while trying to contain the other two.