The actual product is fine.  It was the shipping box that it came in that was the problem.  It was the most disgusting box I have received, from any company shipping me goods, ever.  The top of the box was covered in mouse/rat dung (I've seen these before, unfortunately, so I knew what it was right away), and the whole box was sticky to the touch.  It must have had a rat's nest right near the box in whatever storage facility it came from.  The worst part is that whomever prepared the order just shipped it like that.  This is the 2nd order in a row that I've had an issue with a product from Wayfair.

Like I said, the actual bookcase was fine, easy to put together.  It seemed like no rat intrusion occurred on the inside, but I feel disgusted by it and will clean it thoroughly.