I gave 3 stars, it use the inter locking nuts that spend with the screwdriver. They felt weak. The packaging was good. The instructions were good and clear, even though I messed a step up. The hardware was will organized and easy to find. It did take 3 hours to build. But I think that was just me. The light is on the right side of the shelving vertical side not both. You can turn the motion sensor on and off, and change the color with ease.