We had a really great time in Berlin!
Alan was a friendly host and took the time to explain to us a lot about Berlin. He had created a folder containing all sorts of practical tips about the city (where to eat / drink / going out, renting bicycles, public transport, museums, etc.) Very useful and comprehensive!
The apartment was clean and pleasant, with all mod cons. During our stay Alan inquired whether everything alright.
We spent a lot of time in the sunny, peaceful garden where we had our breakfast in the morning.
The communication with both Alan and Kasia was very pleasant. I would therefore recommend this adress in Berlin to everyone!