We noticed on delivery of our coach that it looked pretty clean inside EXCEPT that in the crevices at the edges of the slides and around the dash, etc. bits of dust etc. had collected, a few screws, and the surfaces were a bit grimy to the touch. So we gave the surfaces a good wipedown and did some vacuuming. But the inside of the cabinets and drawers were all spotless, and looking behind the couch etc., things had been cleaned up. Basement looked really clean too.
We did find beside the passenger chair that the floor hadn't been cleaned up and a hammer was lying there. We shoulda kept the hammer! (assumed it was the dealer's).
But today we had to work under a slide and under some drawers and yes - screws, washers, lots of dirt and bits. When the hole for an electrical cord was drilled through the bed nightstand, no one had vacuumed up the dust underneath. Pretty darn grimy.
So I guess they're still not vacuuming up the hidden places while they build the unit.
36ft 2006 Alpine Coach FDDS