The bookcases were not exactly what we expected. The shelves and sides should be at least 1/4 inch wider. One of the pre-drilled holes was crooked and we split the piece. We were able to repair that, but had to use a finish nail instead of the screw. The allen wrench provided with the product was sadly inadequate. The screws should be phillips screws. There were 40 screws and if we had used the provided tool, we would have never been able to get the screws completely inserted. Also the bookcases are not as sturdy as we thought.  This was the first time I ordered from Wayfair. I may be a bit hesitant to order again.