I had AHS for 9 years and when my a/c quit working on June 29, 2014 I called for repair. What I got was a unlicensed uninsured contractor who used the wrong parts and did not fix unit.
This contractor refused to return to complete the job and AHS became difficult to work with. AHS ultimately paid for a different licensed and insured contractor who fixed the unit in one hour.
However, be careful as AHS will send a "authorized" agent to your home but this does not mean "licensed or insured agent". I have promptly canceled the contract.
Monetary Loss: $216.