Das Beste:Engine, once properly aspirated, is a towing beast. THe 4-wheel drive shift on the fly is also really handy.
Das Schlechteste:Emissions control systems rob power, engine life, and are expensive to maintain for relatively little benefit. Consider a lifecycle analysis of the system before assuming it's a net benefit.
Das Beste:All the options and I finally got it the way I want it
Das Schlechteste:As soon as the warranty ran out on the emissions, the filter plugged up, and of course, when the powertrain warranty ran out. The transmission started acting up.