Repairing the a/c in our 20+ year old GMC Suburban was a big challenge: between age, rat damage, and multiple leakage sites. Ernie's showed both integrity and 'good faith' in their handling and not charging me for some items as they got deeper into discovering and repairing the root causes of the a/c not working fully. I was pleased with the final result and will continue to trust both my GMC and other vehicles to their care.