It's just the best place I've ever been, maybe even in my life!
Berlin is a very bright city and this is right a hotel afloat, excellent healthy and healthy breakfasts, cleaners come every day, if it's stuffy, then you can open the window and feel this smell of water, this magnificent view, right at the Berlin wall, is very pleasing, there are only good impressions of the hostel, I advise you!
Not a bad place to spend the night once. The location is perfect — right next to the Wall. The disadvantages are very small cabins, stuffy. Bobbing on the water gets boring. Check-in after 16:00, deposit 20€.