TLDR: Found a rat on the bed in the bedroom and left early, then never heard from the host after.
Location: located next to a few other houses but otherwise sandwiched between multiple auto repair shops. Most of the street parking is occupied by old, abandoned cars covered in dust. Saw multiple homeless people wandering outside whenever we came or left from the property
Cleanliness: the house itself is fairly old which can't be helped. However, the carpet is visibly very worn down and felt "crunchy" when walked on, so we felt the need to wear socks at all times. The bedrooms had a distinct mildew smell especially in the mornings and when the AC wasn't on. Saw a large area of dried red liquid on the wall that had dribbled to the floor in the hallway. Shutters were dusty and found crayons next to the bed, indicating the house had not been cleaned thoroughly.
Worst of all, my parents walked into their bedroom on our second day to find a RAT SITTING ON THEIR BED. We then had to capture it in a trash bin on our own, but not before it darted under their clothing and other belongings. After that point we decided to leave the property early and found a hotel last minute.
Communication: The host was initially communicative. He initially continued texting me on my personal phone number even though I politely asked he message me on the AirBnB app for privacy. After we discovered the rat, all communication stopped. I fortunately was able to receive a full refund after messaging and calling Airbnb support multiple times, but the host never once reached out to apologize about the situation or inconvenience or let us know how they would remedy this for future guests.