We rented a house (or so we thought) in the Caribbean for a big vacation, it turned out to be a room in someone's home, they live there full-time, there was no glass or screens on the blinds and windows - it was completely open to the outside, bugs were pouring in, roaches in the bathroom, and we had to leave our car in a public parking lot as the house was so difficult to access.
HomeAway could have cared LESS. They have no minimum standards that a home has to follow to be listed. We were offered nothing, and the home is still available for other unsuspecting renters to fall for.
HomeAway's entire response to the incident was for me to contact the homeowner directly, which would not have changed any of the facts, of them living there, and the entire house being open air.