I bought it for my brother as he used to ahve a random collection of drill bits, screwdriver bits etc dropped into the bottom of a large bag and could never find anything when he needed to start a job in his house.
Now all of them are gathered in one place and easy to find. It really comes into it's own when all he needs to do is drill one hole and put in a screw. Instead of dragging out everything to let the bag come out and then rooting through the bag to find the corrects bits he merely takes out one box and selects the correct bits.
He is very happy with the set.