I had a very pleasant two-week stay here. The hosts are very friendly and helpful and will make you feel at home. The location is great, very close to the U-Bahn and Zoo train station, and with everything you need very close by. Only thing to note is that the room looks onto the internal courtyard, which can be a little noisy sometimes, such as when the trash bins are emptied early in the morning. But the double windows do mute the sound.