We just upgraded last week but the Quest Auto-Import is not working properly. For some reason it is saying the demographics can not be matched. I verified that the demographics matched. The interface techs said that this has been an ongoing issue through many versions of AC. Coincidentally, though, it never happened to us until the V9 upgrade.
We had to take it off because it was generating 5+ error messages per patient which was just clogging up the inbox.