I considered for a while, if to write a review, but I think it´s the only fair thing for future guests to leave a review.
The location of the flat in Kreuzberg is nice and the furniture is ok. It´s not really a two bedrooms flat though, because one bedroom is the living room / entrance. Also the 1,5 bathrooms is more like one bathroom with two cabins. But forget it! The main problem with the flat is that it stinks mouldy. In the entrance area the smell is not bearable, but luckily there is a second door. This helps a bit, but the smell is just in the whole flat. All this considered 3 stars would be an appropriate rating for this semi-basement flat.
The one star rating is the result oft he owners strategic behaviour which explains why this flat has such extraordinary ratings. The owner wanted to meet us before we leave and asked us if everything was fine. We told him honestly that it was okay, but that we didn´t like the smell.
So here is his strategy that explains the ratings:
First he tried to make us unsure by trying to distinguish between mouldy and moisty. To our friendly response, that it justs stinks, he replied „Stinks is a hard word“ and got a bit pushy. Since we stayed friendly he changed his tactics again and tried to arouse pity by telling us that his live depends on renting the two flats and that a bad rating would destroy his income. It has to be noted that none of us mentioned a bad rating in the conversation with him and that he initially asked for feedback from us. Then he told us that he would do anything to avoid a bad rating, even refund all the money we paid. We told him that this is not necessary, but that if the want´s he could give us a discount since we think that 200 Euro per night is not an appropriate price for this smelly flat. In response he suggested to invite us for breakfast instead, what we denied … So much for his intentions.
All this shows, he knows that he is renting a mouldy, semi-basement-flat for overpriced 200 Euro a night and he tries strategically to avoid honest ratings on airbnb.