I must say I'm amazed at a C of A taking over a month when theres no problems with it.
It must surely be put behind the quick turnover club a/c like FNG says.
I have put a/c through C of A's six times now and 2 weeks was by far the longest.
If as someone says it is 50 hours work then your a/c has been receiving about 2.5 hrs attention a day!!