Recent Review: The technician arrived on time & went about diagnosis, found what I had feared but hoped against, compressor failure. Their office personnel were helpful, researched our warranty info, located the part & arranged for shipping, which took several days. We were lucky to have a slight cooling trend. The following week the tech. returned & purged the system, replaced the old compressor, recharged the system, & reset the thermostat. Voila! AC! Given the system complexity & particular part failure, cost was reasonable. We found them to be a very professional & informative, helpful company and were glad we were referred to them.