Martin is a nice and reliable host who keeps in touch whenever necessary. The location of the appartment is great, in between parks, the vivid Bergmannkiez and public transport to get everywhere else.
Perfect if you'd like a hub to explore Berlin or visit friends and family.
The place is spacious, spotless and everything well kept.
I don't find it the most charming home ever because of limited light and views in the souterrain; also the furnishing and decoration both isn't my cup of tea. Martin's images on airbnb give a good impression.