The main reason for the poor review is that there were bedbugs. We believe that the host was well aware of that problem, because we found diatomaceous powder inside the couch bed. There were obvious traces of bedbug excrements on the walls and near the beds, as well as actual bedbugs on the beds. Other than than, the apartment was not super clean. There was a huge hairball on the night stand.
We did not stay there a single night and left for a hotel. When we let Coco know about bedbugs, she responded quickly and asked if we wanted to stay in another of her listings. However, we did not trust the cleanliness of her other places and asked for a refund. We did not hear back from her until the issue was solved by Airbnb, which issued the refund.
Apart from that, the check in was very easy and the apartment is extremely well located. I hope that the bedbug issue can be fixed, because it would be a great apartment otherwise.