I give this place 5 stars. It is extremely clean, super fast wifi, the bed is SUPER comfortable, very firm, the most firm bed i had in a long time which is excellent for my back.
The place is designed as a boat, so it is a unique experience, very different from every other airbnb. The team is very professional, all excellent.
Only negative is there is little natural light in the apartment, so you need to have the lights on, even during the day. But if this detail does not bother you, the apartment is totally 5 stars and very high quality.