We bought our 2013 70A not long after I was diagnosed with Celiac Disease. One of the factors in the purchase was the relatively large refrigerator. My wife wanted the extra storage under the beds. I love driving the Sprinter. My first RV was a gasoline powered 32' Class A and I hated driving it. Of course I had to tow. I love the diesel engine in the Sprinter, the way it doesn't slow on hills. We don't have to tow but I can. My only problem with the Sprinter are the constant rumors on sites like this that talk about dash lights coming on, having to replace this engine part, etc. I just get the service performed regularly and, for the most part, haven't had much trouble. (I have had to replace a few cheap Winnebago coach parts.) It is not a problem to add the DEF fluid. I just add it either when it asks for it or whenever I arrive home. No problem.