Assembly was straightforward but took 2-3 hours. There was one screw hole that wasn't positioned over the pre drilled pilot hole. It was the middle screw on the underside of the drawer where the rail was attached. Since the provided hardware were wood screws, I was able to tap the screw without drilling a pilot hole. This situation makes you hesitant and increases the assembly time as you second guess yourself. Other than this, the rest of the assembly followed the instructions. There are no hard steps but it takes time. Overall, we really like these units and are making great use of the included charging ports.