No DEF, No Regin, Excellent condition.no pets, no smoking,as close to new as it gets . There is nothing at all wrong with this beautiful coach. Cummings diesel, spartan chassis. I believe it has every option available from factory. 3 air conditioners,bath and half, king sleep number bed in master, queen sofa sleeper with sleep number mattress, automatic day and night blinds,washer/dryer, dishwasher, aqua hot on demand water heater and heat,in motion satellite,4 TVs including one outside, blue ray, 3 slides including a full wall slide, residential side by side fridge, macerate sewer pump, dual air and hydraulic leveling. I'm sure I'm forgetting something but it has everything you could ask for . Always stored indoors when not in use. Very easy and fun to drive. One Owner. Purchased new from South Haven RV in MS.