The Nova Houseboat is tucked away about 10-15 minutes outside of Amsterdam in a residential harbour. The area is quiet, with no noise from nearby. It's a short Uber/taxi ride into Amsterdam, or you can always ride in on the bikes supplied as part of the rental. A word or warning though - cycling in the busier parts of Amsterdam is a scary experience if you haven't done it before, even if you've cycled in other cities.
The houseboat was lovely. Harry had left tea and coffee, as well as a pack of biscuits, which was just what we needed after the journey. It was clean, surprisingly spacious, and warm - the opposite of my houseboat experience in the UK. We especially loved the massive bath and the roof terrance. Both lovely places to relax with a glass of wine.
I'd highly recommend this place to anyone who wants to see Amsterdam, but wants to get away from bustle of the city when it's time to relax.