For a different experience and one that is unique I would recommend Mara houseboat. She’s kept very clean and is modern. Love the idea of waking up on the peaceful waters and enjoying the views before starting a busy day in Berlin. The Hafekuchen has excellent food. For 2 of us the space was perfect. Elena who attended to us is a superstar and was very helpful. Just a 5 min walk to the nearest Tram that brings you into Friedrichshain and to several nearby train stations. Loved coming back to the Marina to our houseboat after a long day out in busy Berlin. Absolutely recommended!