Very poor handling

The set is in itself a good idea, but very bad to use. The glasses go on only with considerable force, and if you have kept what times, it may be that the cup no longer rises. When mixing, it may be that pieces remain stuck to the glass top, then you have to hold out, unscrew the glass, open, stir it back in place. The knife holder is so hard to assemble, as no handholds turn. Very awkward. Nuts are mushy, and it sticks much under the knives. The displayed attachment direction is wrong, you have to try forever to you get the mixer to the food processor.
So great idea, very poor workmanship.