Our stay in Reinhart's boathouse was nothing short of amazing. The rooms and shower was clean, the location was perfect. We were pretty much as central as possible - directly behind Central Station Amsterdam, which you had to take a 5 minute ferry ride to.
More importantly, Reinhart was there when we needed him, and he made it as private as possible for us as well, which we appreciate very much. We arrived in Amsterdam pretty early, and he was nice enough to let us leave our luggages in his boathouse first while waiting to check in.
Overall, an extremely pleasant experience that was all the more pleasant with the ducks and swans in the water outside the houseboat.