This apartment is unsafe for children. A sliding door in the kitchen, which any child can open - as it does not have a child safe lock - leads to the emptiness. There isn't any guard or protection inside of outside the apartment, so any child (or person) can just fall off from a two floor up apartment.
In addition, dishes and appliances in the kitchen were not clean, and a sewage odor would come up often in the bathroom.
We had to contact Airbnb to help us to get a refund and to rent something else, as the owner was denying the problems. Airbnb was very helpful.