We stayed for five days at Kathrines apartment. It is just as described by herself and by most of the other feedbacks before us. Katherine has been very helpful, flexible and easy to talk to, the doormen does the key-handover. The windows in the apartment dont do much in terms of noise prevention, so prepare it to be more noisy than you might be used to. Everything else was good. Its a bit to walk from the next subway but during nice weather no issue. If you might compare it to a hotel stay, Id recommend it.