Check the tires! My tires were rated for the weight but not speed. They were rated for 62 mph. After my first trip to Arches National Park I had two blowouts. I have since changed my tires to better rated tires.
Check the securement of your refrigerator! My refrigerator fell out of the wall while in transit. This destroyed several cabinets, the oven, floor and the refrigerator. Four months at the dealer for warranty repair. This was on the previously mentioned trip.
My 2020 Redwood 3981FK is only 18 months old. Above issues happened within the first six months.
As mentioned before, check EVERYTHING. I found a few other items upon delivery that I had to repair myself. (Inverter, gas line to stove, suspension bolts not properly torqued, blinds)