I enjoyed my stay at Nora's place very much and I would recommend it to anyone. Location is great, connection to U-Bahn and tram is very easy and can get you to most places in Berlin within 30 minutes. Checkin was super easy, Nora left the keys at a Kiosk for me to pickup. The apartment is very spacious and cozy. It has a big balcony and I can imagine how comfy it would be when weather is better(Winter in Germany, ughh). Nora has left notes and suggestions for getting around, getting food, party etc which is really helpful.
On top of everything Nora is a very hospitable host. I locked myself out of the apartment one day and Nora arranged for me to pickup a spare key:) And she offered for me to keep my luggage at her place until 6pm. That have saved me so much energy.