Bottom line, I would have my mother take her car to Sheridan Auto Tech and would feel she would be in good hands. Let me tell you why.I had a check engine light on, a major loss of power, and the car was not downshifting. I was told by others that I needed upstream sensors, a new PCM (computer), and a new transmission. I was looking at about $5,000 in repairs, and I started looking at dumping the car and buying another one. But before doing that, I went on the Internet to search for a service center who really knew car repair and who I could trust. After spending time, I settled on Sheridan Auto Tech and another one I won't name. Both were BBB certified and had no complaints. I went to Sheridan Auto Tech first because they were a "family-owned business since 1986." I found that to be of value since I think a family-owned business would really want to be trustworthy and provide good service. I met the owner, Kevin, and explained that I do not trust dealers and that I had previously had bad experiences with people not knowing cars or wanting to overcharge me. I agreed to let him do a diagnostic for $70, and here's what I liked. Unlike most other service centers, if I had the repairs done there, the $70 would be deducted from the bill. Other service centers would make the diagnostic an additional line item on the bill, and I never liked that. I could see it if I get the diagnostic then repair the car myself or take it elsewhere. But not if the car repairs are being done where I get the diagnostic. After the diagnostic, Kevin took me to where my car was raised and showed and explained things to me. He told me nothing was wrong with my computer, and he didn't see anything wrong with my transmission. The loss of power was due to a catalytic converter problem. But on my car there were 3 catalytic converters, and he said they'd have to determine exactly what the extent was after they got in there. But he gave me a "worst case scenario" estimate. Also, one of my engine mounts was cracked, and he recommended that be replaced as once they get engine power back up, there would be more engine vibration with normal power restored. They would need the car for a day and because it was an extensive job and because I lived in the area, they would shuttle me home and would pick me up when the car was fixed. So, I set the appointment.The day of the repairs, I was taken home. They called that evening when the work was done, and I asked if they could pick me up the next morning because I had started watching an NBA playoff game. No problem. The next morning, I was picked up in my car. That was good because I'd get to drive it before I wrote the check! I put the car on the highway, and was so pleased. It had power as it did the day I picked it up from the dealer! The check engine light was off too. (The guy who picked me up told me the light was on because there was a short in the heat circuit leading to the harness of one of the upstream sensors. Hence the upstream sensor code, but the upstream sensors did not need replacing as someone else told me.)When we got to the shop, I was headed to see Kevin, when the mechanic asked me to come over to his bay. On the table, he had laid out 2 catalytic converters they replaced, the cracked engine mount, and the heat circuit they replaced. He took a flashlight and showed me damage to the converters, showed me the crack in the mount, and showed me the heat circuit. (They would have tried to fix the heat circuit but the wires were frayed from excessive engine vibration due to the cracked mount, so they replaced the circuit. But other places would have replaced the entire harness that held the circuit, which would have cost me more.)Kevin went over the bill in detail with me. I had no problem at all with the charges. Kevin is also an NBA fan, so we talked a little NBA, I paid the bill, and left. Wait. There's more!A couple days later, I had a separate and unrelated problem. It was like my car was stuck in cruise control. I was not too far from the shop but was scared to drive it. I called Kevin, described the issue, and he told me to sit tight. He showed up with a mechanic. The mechanic popped off a plastic housing, revealing my cruise control cable. The little plastic piece that guided the cable had dislodged and was preventing the cable from being released. They temporarily fixed it so that I could get it to the shop. The mechanic glued it so that I could drive over the weekend (this happened on a Friday after 5pm), and they would order the part Monday morning. I got the car in after they got the part, and they fixed it in about 30 minutes. Oh, Kevin had told me on Friday it would be about $100 to $110. The bill was $99 and change. I feel good about my experiences with Sheridan Auto Tech, and I would recommend them if you want someone who knows cars and is trustworthy.