Peter and Jeroen have a lovely boat. This room that they rent was just perfect. It is under from deck, accessed through the cabin (yes, there's the wheel as well!).
There's a kitchenette, a good bathroom, with big shower and toilets.
Also, the description is spot on: the room is completely separated from the rest of the boat, where our hosts lives.
The heating system is effective; we went there in mid-November, it was cold outside, but very comfortable inside, and the bed was very good.
There's even an expresso machine for coffee !
Finally, we were both very glad to see the little personal touches they added, including a sweet custom welcome message! There's also a city map in cabin that they've scrapbook-ed to customise! It's the little things that made our stay perfect in Amsterdam.