It's obviously a great paint!

I'd go for Matte everywhere except Kitchen & Bathrooms.
Aura has a K&B paint. Use it there.

I'm on the fence for the kids rooms themselves! I'd put an Egg or Satin in there.

Faron

It's probably the most durable paint available, aside from Fine Paints of Europe. All other washable mattes/flats are not truly washable like the Aura. If you are really not interested in having a sheen on the walls but you still want durability, then Aura is the best option. I really don't know what the builder can say....it's your house and you have done the research. Of course, it will come with a price increase because Aura is more expensive than whatever other paint the builder/painter was planning on using and it should be applied two coats on top of a good primer.