Arrived 4 days after ordering. no damage during shipment. several screws were missing - not a problem as we had some that would work. also missing were 2 plugs for the movable shelves. we have contacted the manufacture. as noted, the backing is cardboard. we decided to add a sheet of luan over the cardboard to the back for extra stability. no difficulty with the assembly. instructions were easy to follow. pieces went together as designed. doors were aligned. this cabinet is just what we expected and wanted and are very happy with it. would buy from this manufacturer again.