I bought it today for my child who is obsessed with Lego. It helps incredibly to open a drawer and easily find everything you need for construction. Also, the base on top is perfect for placing the construction you are working on.
The only negative is that it doesn't have smaller compartments in the drawers for organizing by color. So, we put three colors in each drawer. However, this can easily be fixed with smaller open storage boxes for each drawer.
It is definitely worth it as a purchase.