The house boat is close to public transportation (5 min walk) and a very nice starting point for exploring Prague. You can reach the city centre within 10 mins by metro. It is a good idea to watch the video provided by the host on how to find your way in to the marina area. It is a quiet area and the little terrasse facing the river is lovely. we enjoyed sitting there both in the morning and in the evening.
We had a very nice stay on the boat.