Mark was helpful and communicative from the moment we booked, through our stay and departure. We weren't able to meet him, but his friend let us in and was great.
The houseboat is adorable - the street is great, quiet, and centrally located - and it was a cool experience to be able to stay in this space.
It's tiny - as you'd expect a houseboat to be - and has its quirks - but I think that's part of the charm. It was a cool way to experience Amsterdam!