I had a wonderful stay in Berlin. First of all: location. There is a U-Bahn entrance next to the building; 2-minute walk to S-Bahn, 10-minute walk to Alexanderplatz, 20-min to most of the main sites in the center, including the Museum Island. There is a fantastic view from the apartment's window on the 14th floor over the entire central section of the city, with the famous Fernsehturm very close. The apartment itself is very clean and has all the basic amenities, including a fully-equipped kitchen, a washer, a pair of nice armchairs, and a desk where you can put your laptop. WiFi is fast, and I haven't had a single interruption over my week-long stay. Finally, communication with Ivos and his friend Luke was very efficient and helpful. I arrived in Berlin after midnight because of flight cancellations, and Luke was there at 1am to greet me and show around. In fact, I learned about my flight cancellation from Ivos texting me even before I had any messages about it from Lufthansa! Thank you very much for your hospitality and accommodating my late arrival, I very much appreciate it. Overall, I think this apartment is an excellent value, I would recommend it without hesitation.