Our stay on Jaap and Natalie's houseboat was wonderful. The houseboat was a great size for us and in a perfect location to see Amsterdam's highlights without being too busy. The bathtub could be tricky for the inflexible, but wasn't a problem for us at all. We'd recommend the houseboat to just about anyone. Jaap and Natalie were warm and generous hosts. They live nearby and were readily available.