We traded our '06 Captiva 272RKS this spring. I found the a soft spot in the bathroom floor that appeared over the winter and didn't want to deal with it.
The problem we had with the '06--and I don't know if this is the same way on the '09--is the trim at the bottom edge along the sides. Very cheap, maybe 3" wide PLASTIC "T" moulding, stapled to the underside. Little or no caulk. The top edge of the moulding overlapped the side, and allowed water enter along the edge. Seems to be a poor design. Had damage along the edge on both sides.