Let me start with the good points: The location is great, you can go to Rathaus Neukölln in your slippers if you want to - it's really a minute or two away. The furniture visible in the photos meets or maybe exceeds expectations, at least visually. Gia (who is a co-host with Miriam apparently) is very responsive and usually responds within short time. The checkin was smooth even though we were late, but it wasn't a problem because we picked the key in the burger place downstairs.
The burger place has really nice food, but very bad ventilation, so the staircase smells with fried oil and burgers.
In the apartment there is a single closet for your clothes, but it's half-full with stuff for the apartment, bed sheets, pillows, towels, etc, so there wasn't enough room for our things and we had to keep them in our suitcases. The lovely bed side tables you see in the pictures had a really bad smell inside the drawers. When I asked Gia to take them away or do something about them I got the answer that "nobody complained before" and the help was that I can "put them somewhere" in the apartment.
The kitchen has new appliances - stove, dishwasher and a fridge, but does have ridiculous small number of cutlery sets (I think there was at most 4 sets of knife, fork, spoon) and a bit more, but still hardly enough dishes for a family of 3. Some of the consumables were also missing - I don't think we got any soap, and we got 1 roll of toilet paper.
The bathroom has a semi-translucent window cover you also can see in the pictures. What you cannot see there is that in the night you can watch what the neighbors on the other side of the street are doing and if you switch the light on they can see you too!
None of these alone would make me write the bad review. The problem I have with this offer is the value/money ratio. I am certain that with the money equal to cost of single night in the apartment Gia (or Miriam) could fix almost all of the problems I listed above. I have tried to get assistance from the hosts, but apart from the offer of reimbruising of some the costs I didn't get much help. Maybe this is because we didn't meet in person at all and all of our communication was over text messages, but I have the impression that my complaints were annoying Gia.
So all in all - I can see how this offer might be good if you're in your 20s and want to have a stylish place to crash after some partying. I guess then you don't pay attention for the detail I did. For me though the offer is overpriced for what you get.