We booked this apartment months in advance of arrival in Valencia for a two-month stay with our young child. From the photos and reviews, it looked like a good option for our situation. Upon arrival at the apartment, we discovered visible, large spots of black mold in a corner of the ceiling in the living room. When we brought this to the host's attention (note she is not in Valencia but has a third party manager in the city), we were told that this was an issue the host was previously aware of due to water damage from the terrace/apartment above and when there are heavy rains. The host did offer to clean the area with bleach and other products, but we were uncomfortable spending any additional time in a unit with recurring mold. We cancelled the reservation and left as soon as we could for our family's health and safety.
This was an extremely disappointing, inconvenient, and frustrating situation in the height of summer tourist season as it is very difficult to find another place to stay for two months under these circumstances. Although the host agreed to refund payment and was communicative during the complaint process with Airbnb, we should have been told about this problem ahead of time so we could have made alternate arrangements, as we would never stay in a property with mold, especially with a young child.