We've been overall pleased with our REV.
When we got our REV, I compared it to the pictures on the web and discovered that the dealer had put the drain from the refrigerator back behind the vent. It was meant to stick out of the vent. If I hadn't fixed it, then we would have a rotted floor from condensation from the fridge.
Sorry you've had problems.
2015 Dynamax REV 24TB class C