I have been using 3A for a couple of years. My first time in I came from another shop with and estimate for work that needed to be done, hoping they could beat the price. They explained why I didn't really need the work that the other shop recommended. Instead they found a serious leak on my water pump the other shop missed (precipitation showing all over the pump). They explained why that work was more important. I find them to be knowledgeable, professional, and friendly. Highly recommended!