Two friends and I stayed at Martin's apartment in Kreuzberg for three nights. One member of our party was sick so we had to delay the trip by a day and Martin was happy to accommodate. He was very kind and responsive throughout. Martin works next door and was able to let us in very easily and showed us around the apartment. The apartment itself is very well stocked and was comfortable for 3 people. There are two rooms with a connecting hallway/entryway. The front room is a living room with a lofted queen bed, and the back room is the kitchen and bathroom with another lofted queen bed. The apartment is on the ground floor and you can hear people coming and going from the front door. I sleep with earplugs, so it wasn't an issue, but it's something to note if people are more sensitive to noise. It didn't prevent my two friends from sleeping either. All in all, a great apartment in a great location. Thanks Martin for a lovely stay!