This is a bright top-floor flat. The kitchen and bathroom are spacious and both well-equipped. The flat is warm and comfortable. S-Bahn and U-bahn stations are about 10 minutes walk away, though I was able to walk to the Ku-damm in about an hour. There are several supermarkets nearby.
It is about 45 minutes from Tegel airport - bus plus S-Bahn.
Carsten responds quickly to any messages and is a friendly guy.
No big criticisms - the bath is a little narrow [but was ok for me]. There was scaffolding erected outside by the balcony - though not in use. I assume it will be removed after Christmas.