We had a really nice stay at Anna's !
The boat is clean, and it is easy to understand how everything works (Anna keep a note book where everything is explained). I recommend the experience of living in this kind of boats for a few days !
I would only recommend to reach out to Anna a few weeks before the trip to confirm the location. The boat could be parked in very different places, and the location indicated on the Airbnb page is not necessarily the one you will have.