You definitely should visit. In fact, I visited that big open square and the two churches beside it, and stopped for coffee in a museum café on the squares edge. My fathers ancestors left the Netherlands for New Amsterdam so it was a treat to be in their country for the first time plus it was fascinating to visit churches from the 1100s and to walk atop medieval town walls. Im used to the UK but this was on a completely different experience, what with the language difference.
But somewhere, way back, I bet we share a common DNA strand. ;-)