I'm not so happy with their adult shoes. Some are good, like Gobi. Others are pretty bad, and they change their designs pretty radically so they never improve their weak points.
For example, I spent a few hundred on the first Porto iteration, and it fell apart in less than 2 months. Their German shop refused to honor the guarantee.
Not too cheap though.
I can't really speak to the quality of the kids shoes, but I own quite a few pairs of their adult shoes and am very happy with them.