Remember to leave your emotions at home on PDI day. If you find anything at all that is not to your satifaction, do not take delivery until all is remedied. Until you hand over the check, the camper belongs to the dealer, he just wants to get the unit delivered and off the lot.
Don't be cajoled into take delivery with the old "take it and enjoy it while we order the parts." line. If you do, you'll be chasing after the dealer and Dutchmen to get the defects dealt with, right in the middle of the camping season.
When I was a kid I was going nowhere fast, now I'm an old man I'm going everywhere slow.