Open Range 3x427bhs for full time family???

Does anyone own this unit that can give some feedback on it? We are considering living full time for a couple of years and have 4 small children (3,1,1, and a baby). I am in the Army and not sure where I will be going, but probably in the D.C. area where the weather is not extreme, but will see sub-freezing temps.

Given our family size we want adequate room for the kids' sleeping arrangements, and still want to have adequate seating in the living area--which limits options. We will be pulling it with a 1 ton diesel single axle.

thanks for your help

Matt