I go here all the time, it’s my favourite pizza place in Rotterdam (and one of the few that does gluten free). It’s well priced, they’re fast and the staff is incredibly nice. I usually call them to pick up and it’s ready 10-15 minutes later. They can make every pizza gluten free and you don’t need to warn them in advance that you want to eat gluten free. I am sure they’re careful and I’ve never had issues with cross contamination, though I’m not the most sensitive person either
— Gluten-free items are marked on the main menu
— Most/All
— Excellent