I have had the google mesh system for over three years. it is absolutely great. I have a 2150 ft^2 house on just shy of 1/2 acer lot. the three mesh routers are a bit over kill, but I have perfect coverage over the entire property. If I were a parent....the device specific controls that a mesh system provides is killer. you can kill your kids internet only at diner or bedtime for example.
Didn't think about the kids internet controls but you can do this already on most home routers.