We stayed in this well appointed, well maintained apartment for close to a week, and found it to be a great location. Wi-fi was rock solid, and always available. Our primary reason for visiting Berlin in early February was the Berlinale, and were pleasantly surprised to find that one of the primary venues for the Berlinale--the Friedrichstadt-Palast--was a very short walk from the apartment. It is, however, a good location, in general--the Orianienburger Tor U-bahn station is quite close by (next to the Friedrichstadt-Palast), the Unter den Linden is a short walk directly south, the Reichstag and Brandenburg Gate a shortish walk to the SW, and the Hauptbahnhof a few blocks to the W. There are some shopping options close by, and an abundance of restaurants in the surrounding area. The apartment is on a courtyard, off the street--so very quiet--although it is up a couple of flights of stairs. The WC is exceptionally large, with a very hot radiator/towel dryer of commensurate size--which made it very easy to quickly dry out any hand wash laundry we needed to do. There's a nice little terrace off the room, which we didn't make much use of in the February weather--but would certainly be a nice feature during the warmer months.