Repeat customer, several vehicles in thier system. Have been reliable, and helpful in the past. This time around, not sure how the valve cover leak(s) were discovered, but due to the condition of the car, I had no choice but to have that done as well. My only complaint was that the clock was not reset after the work was performed. This little detail (to me) can make the difference between staying with a shop, or looking elsewhere for future repair work on our 4 vehicles.