This bin has many many pieces and they definitely have a process that cannot be switched up ….so don’t just start putting things together ... .My husband did this and we ended up taking over half of it back apart to get the center divider in properly. Read the directions and lay the parts out so that you get the idea….to give my husband proper credit…he builds houses so he typically doesn’t need directions to see how something should fit together. This is the exception. The center divider looked like it should fit snugly but instead just kind of hangs out in the middle groove. ( so it’s not a tight fit like the other pieces ) It does need to be in the slot allotted and we found it helpful to have the center pole through the ends and through the center panel to keep it from rotating. This may have worked for us because we started behind the 8 ball…but if you are having issues with this matter…it solved 90% for us. As we assembled and disassembled, we did have a screw pop loose, through the plastic….it did not tear away any plastic but enlarged the hole somewhat so when we went back to attach that section, we used some small black washers that we had on hand, just to insure it didn’t cause a issue later. We do think that the divider will not prevent anything tiny from transferring between the two halves….which probably doesn’t matter at all. During the point of assembly, we did wish we had chosen the other style bin with two separate halves….it would have simplified the assembly ( not being so large to handle all at once and no fiddly middle panel ). Several have found issue with the height but I find it to be adequate….I will likely make a paver pad for it to prevent weeds from growing up around it and doing that will raise it a couple inches or stacking pavers &/or cinder blocks would create a custom height if my husband (6’4”) would prefer it to be higher. A convenient height as far as adding/ rotating / harvesting the mulch will be different depending on your hei