Having owned 2 previous M-B Suvs (ML and GL), I can say without a doubt that this is the reliable, most comfortable and best performing of the three. The "R" is more roomy than either the ML and, yes, even the GL. It also handles better and is more pleasant on the highway. How the minivan label became attached to this model is confusing. It is not styled or functions like one. The diesel is the only engine to have as it accelerates strongly and is very frugal for a vehicle of this size. The styling was not my favorite at first, but has grown on me. It is hard to find an "R" owner that does not love their car. Resale market pricing for the diesel version is strong. Good job Mercedes!
Performance, interior room and comfort, fuel mileage with the diesel Good reliability up to this point, great resale for the diesel version.