A lot of problems with repairs are the time it takes manufacture to ship replacement parts out to the repair shops along with shop receiving damage replacement parts. Parts manufactures have priority system where items go to the production lines first, warranty second and repairs shops last. Special order items can take weeks especially if it's a panel or door has to be made up.
I still think manufacture quality control is very poor to say the least with an attitude that they don't care just ship it to the dealers and let them fix it!! I would like to see it were the dealers do a pre-delivery inspection and if the rigs has obvious defects it's return to the manufacture at there cost!! I have seen a lot of rigs dealers have that have so many manufacture defects you have to wonder why they are trying to sell them and then again the manufacture will not pay warranty work until after the sale!!