Crevier or Irvine for Service

[F9T]

I need to take my X5M in to get the injector service performed and have my driveshaft inspected. Anyone have experience with Crevier or Irvine? I talked to Richard Kim at Crevier and he seems really good, but I don't like how long it will take them to just check out my injectors before ordering new ones. Richard said I would need to leave the vehicle all day, whereas Irvine said I could wait for it and the inspection would take an hour. Who will give me the best chance of having the work performed right and not giving me any door dings, scratches, etc.?