Yes, sometimes we catch a whiff of "that's too many," but surprisingly we hear more positive comments than negative. It's definitely challenging financially and logistically (sometimes emotionally, with disciplinary issues) but each little life is so unique, so amazing, so fun, we wouldn't trade it for anything. The older ones help a lot with the younger ones so it's not as hard as most people imagine. And most importantly, the Lord provides what we need.
We did discuss 6 even before we tied the knot, but with the caveat that every child should get a brother and a sister. That means 4 minimum, with max undefined 😄. It took us 7 tries to get a 2nd girl.