We loved staying on the houseboat. Derk was an excellent host. He was waiting for us to arrive, explained how things worked on the boat and gave us a guide as to where find supermarket, shops, restaurants locally. Tourist information on the boat was helpful. Cold beer in the fridge was good touch! The location of the boat is excellent, in a quiet street but within a short walk from the hustle and bustle of the city. The boat had everything that we needed for our stay. Bed and sofa were comfy and the choice of cd's was particularly good. Going to see Derk play with the Orchestra was awesome. The coot family nesting beside us provided a lot of entertainment.