Klaus’s place is fantastic. Better than the pictures, close to shopping, restaurants and nightlife. U-Bahn or bus is just steps away and Klaus has provided maps, guides and personal recommendations. He has also provided brief guides for using the appliances. This is especially helpful with the washing machine.
He is an exceptional host. I had dreadful problems with my flight from Boston and had to change my arrival time from noon to 6pm to final 10:30pm. He kept in close contact the entire time and was still kind enough to meet me at the flat, give me a tour and provide a cold beverage (wink).
In addition, when I did have a question he was quick to answer and provide me the information I needed.
WLAN has a great signal and there are plenty of options on the tv as well as movies and books in the flat.
The balcony overlooks the courtyard and Kleistrasse. It can be noisy because it is a very vibrant neighborhood, but I had no trouble sleeping, even with the windows open. It’s also a safe neighborhood, I had no qualms about going to the spätkauf at 4am.
I plan another trip to Berlin to continue my language classes and can’t think of a better place to stay.