WJLA-TV has reported on a case in which American Home Shield refused to pay for replacement of a clothes dryer that caught fire, on the ground that the local fire department had removed the dryer from the home when responding to the call. WJLA-TV repeatedly attempted to contact American Home Shield about the incident, but received no response.
Consumer Reports: Of the four companies we reviewed, the highest complaint generator by far was Memphis, Tennessee-based American Home Shield, with 4,660 complaints as of mid-June. Of the 44 reviews customers posted on the BBB website, 41 reported negative experiences with the company.
I use Yelp's website for reviews on car dealers and just about business or service company. Here's a lot of reviews, most are not good.
American Home Shield Home Warranty | Los Angeles - Yelp