I brought an old 1983 Mercedes-Benz 300sd over to them to have them check it out before purchase. One of their engineers, Mark, did a quick test drive with me and identified an issue with the engine not providing the power it should and causing hard shifting. He looked under the hood and identified the issue in less than a minute. He fixed it up with a quick patch and restored the power the engine was lacking. It was rather minor so they didn't even charge me. I was quite impressed with the level of service, friendly attitude, and willingness to go above and beyond. The level of knowledge and experience demonstrated gives me full confidence that they know what they are doing.