I am leery of it given their evolving terms of use. I don't know where they are now, but in December the policy was --
if you take a picture in a retail store (of your child modeling a great outfit, for example), they can sell the use of that picture of YOUR child to that retailer for use in an ad, without asking your permission, getting a model waiver or paying you for it. That is just not OK in my book. I won't go near it.