We had a great time in Mijs houseboat where we stayed for two nights with our two boys and their friend (age 12, 12 and 14).
The boat is a true bohemian and artistic pitstop in Amsterdam. It is generously decorated and each item seem to tell its own unique story - as well as the 'boatcats', which our kids adored.
The location is off the regular tourist track (which is within walking distance though) with a nice local feel. You can hear the trains as the main station and railway track is close by - it adds an urban background soundtrack, but doesn't rock the tranquelity of the neighborhood.
The host was very nice and helpfull - we especially appreciated the help for a good deal on our carpark in a city where parking is almost as expensive as living, thanks very much!!
So to sum up; If you want clean cut lines and style go somewhere else - if you want an original and authentic experience we would highly recommend this place.