My first stay in a house boat in Amsterdam in about 20 years! and i'm glad to say it exceeded expectations.
Cool place, comfy and warm for the 4 of us. I think it would be a little cramped for 5 adults.
We had a glorious saturday morning on on the seated area on top of the boat taking in the winter sun.
Location wise it's all we wanted - 5-10 mins from Dam Square and the red light district, 5 mins from rembrandtplein and 10 mins away from the Tuschinski cinema which if I have time I always try and catch a decent film at when in the city.
The smaller bedroom was the only thing not perfect...we were 4 friends sharing so the room was pretty small and had a partition above your shins with about a 2 foot gap. In no way did it affect our stay - a definite 5 star review from me. We'll be rebooking here for sure.