I had a wonderful stay at David's houseboat. David was friendly, helpful and responded to messages (about arrival/check out etc.) promptly. My room was clean and spacious and the bed was very comfy.
The boat is in an ideal location, less than 20 minutes to Centraal Station and about 25 minutes to Vondelpark, Rijksmiseum etc.
There's plenty of good options for dinner and breakfast in the area too. I'd definitely recommend Alex+Pinard wine bar and Heart and Garden for amazing breakfast waffles that will help set you up for a busy day of siteseeing or help you recover from the night before!