Marian was a great host. He offered to meet me at the train station and showed me everything I need to know about the flat. The place was very clean and tidy with what looked like brand new, or nearly brand new bed linen and towels. H generously provided some drinks and bits and bobs in the kitchen.
The building itself is a little run down, but the flat has been fitted nicely. It's a lived-in flat, but I found the decor pleasing and the place comfortable. It's very close to the train station (which you can get to straight from the airport) and perfectly situated for exploring Berlin!