If you want to spend three days of your life agonising over why piece x is not square with piece y and then taking apart and rebuilding something over and over again then you too should buy a TP Toys Sherwood tower and then try building it on uneven ground.
An electric screwdriver is definitely recommended to drive in the 55 thousand screws that form the tower.
Still – Amelia loves it and I’m sure as Oliver gets older he will too.