The case is very solid offers good possibilities for sorting tool (less for dowels, screws and other odds and ends) and plenty of space. The contractures in the center would not be as strong and reduces the volume considerably. Alleinde by two additional incurred by the contractures corners is the Werkzeugeinräumen may for Tetris game (depending on personal requirements)
The comfort is for various reasons not well. On one hand, the aluminum handle feels itself not so comfortable. On the other hand, it is quite far from the box off so you can keep away the box heavy with his legs - you have to abduct the arm tiring. In addition, the box by the long handle design Dangles pretty much leading to a perceived increase in weight.