We had a fantastic trip and the boat was as expected.
The ferry is just 10-15 mins from central and then the boat is a 5 min walk. Easy to find but we had to call the skipper for directions on how to get on as we had to climb over two boats. This was not easy with suitcases or after a drink so wouldn't advise for the elderly (although we had two 50 year olds who were fine). There was some rocking all over and noise on one side due to passing boats, but nothing disturbing.
The bedrooms are small and not great for very tall people but the mattresses are very comfortable and covers warm. Towels are provided but they are on the small side. Showers are basic and wet room style but water was a decent pressure and always hot.
WiFi wasn't working during our stay.
Kitchen was clean and washing up liquid provided. A couple of things needed a quick rinse before we used them. We made chicken fajitas for 18 people no problem and there was cooking oil. Closest supermarket 20min walk has everything.
The captain lives on board so is present during your stay which is a little strange at first but he has totally separate quarters that don't interlock, so we only saw him on check in and check out and forgot he was there to be honest.
Petra was very responsive answering within one day and providing local recommendations.
If you are looking for a unique trip, good location, communal space and beautiful views then I highly recommend this boat.