We had a brilliant stay in the loft. The apartment is stunning, very spacious, elegant, and with amazing views on to the river. The beds are comfortable, and everything is of a high quality. Location is great, easy access to many great bars, restaurants and clubs in Kreuzberg, Neukölln and Friedrichshain. Arthur was also very accommodating when we decided to extend our stay by a night (luckily it was available). The only drawback is that the space is very open plan, so if there is a chance you might be sleeping at different times to others in your group it's worth having earplugs to hand - a very minor issue in what was overall an excellent stay. Highly recommended, by far the best place I have stayed in Berlin across several visits.