I have the glasses now about 3 months. And the motives are of course as many times as in use, and therefore also in the dishwasher. I must say that I nachsehe every time, looking, but so far I can not see any signs of wear in the pattern. I know of other models quite different, but it's not even a corner where the paint has been chipped.
The images are brushed something, so that it is easier for children to grasp this. For very young children (1.5) they are a little high, but otherwise they are great. It is also not yet chipped corner, which anyway happens fast times. I am very happy with it. :)