Hey, that looks a lot like ours! It is not the best, they were never intended for dirt roads. On the other hand, we have taken ours out on more than 50 trips now, so we have gotten our money's worth. It sure beats the heck out of a tent, especially when it rains all day.
The biggest problem with it is the suspension is too firm, so it bounces all over the place on rough roads, which it turn shakes the interior a lot. I have had to reinforce some of the cabinetry inside over the years. Ours has the Torflex axle instead of the leaf spring axle. It is a little harder to lift, but it is doable.
The foam mattress was really comfortable for the first 30 or so trips. Recently it is getting a little firm - we are going to replace it.