We had a great experience staying on Maria and communicating with Egbert before our arrival! The room is separated from the rest of the house boat, so it feels very private. They did an amazing job with the space: despite being small, it's thoughtfully designed so you'll find almost everything you need in there. Its minimal all-white aesthetics is exactly my style so that was definitely a plus :)
The location is quite far to walk from Centraal but very easy to get to via bike and/or public transportation. We appreciated the quiet neighborhood and it was all-in-all nice to walk around. Not too many food places close-by, but with a bike or a bus pass, Amsterdam becomes very accessible no matter where you are!