I live close to the Markthal and I love the pictures you made from the inside. The city of Rotterdam may be grateful for this excellent free advertisement. On Tuesday and Saturday, there's also a big market outside the Markthal, also nice to visit when you are here again.
One of the cube houses is open for a visit, so you don't have to rent one for the night, you can also visit one like a museum! Rotterdam has a lot to offer, but I'm certain you and Ezzy will visit the city again in the (near) future.