The down side are the mattresses, first of all I booked a double bed, specifically asked the double bed, we would get by with two connected beds we got instead but the springs in the mattresses were so bad that we would just sunk in and in the morning there would be a big gap between our beds. For some reason the cleaning lady would shut the heating when we would be out of the room and that would be the whole day, so after freazing in bed I realized that the heating both in the room and in the bathroom is shut, so if you are there as us in the winter check the radiators, there was no AC in our room so I dont know how it is in the summer heat. The satelite TV is actually 28 programs in german and two in english, CNN and BBC, since we don't speak german we were stuck with the news.
The hotel is located very good, from Tegel airport just board the 109 bus and in 15 minutes get off at the Kaiser-Friedrich-Str./Kantstr., the station is in front of the hotel, literally 10 meters in front of the entrance, the Charlottenburg S bahn station is some 100 meters on the right from the hotel, and the Wilmersdorfer Straße on the U7 U bahn line is some 200-300 meters from the hotel. Getting to the Berlin sites because of that is realy easy from this spot. The Wilmersdorfer Straße is full of shops like Wilmersdorfer Arcaden, a 4-floor shopping mall etc. where you can do your shopping, plus there are tons of restaurants of all sort in near vicinity, from asian ones to all other. The room was clean and the cleaning lady came every day, the low price and breakfast include were a big bonus.The breakfast was good, few types of ham, few of cheese, few breads, cereal, jam, honey, nougat, yogurt/fruit yogurt, omelet, hard boiled egg, bacon, coffee, two types of juice, tea... every day the same choice so if you are there longer it could get boring very fast, we didnt go hungry. If you are in search for a clean hotel, for a low price with breakfast, with good connection to the city and the airport, plan to be out of the room most of the time, this would be the place for you.
More or less this is just what we needed so would recommend.