All regular maintenance has been done as well as all recalls. Ive taken this up to Alaska several times including camping on the Arctic Ocean. Its been trouble free.Some DIY work has been adding an additional 100 watt solar panel, adding extra insulation in doors and walls, installation of a utensils drop-down drawer, spice rack, OTR Weboost celluar signal booster, drop-down drawer over beds, spare tire on rim, spare tire mount.Several things have been replaced the past couple of years they include:Swapping AGM batteries with 2 100 AMP hour Battleborne heated Lithium batteriesReplacement of refrigerator/freezerAwningWindshieldDriver Window ActuatorPropane Regulator Also added an ATS connector to the microwave circuit so it could be run from a battery. BFG KO2 tires have less than 8,000 miles on them.