nice and practical idea, but poorly executed

The unit is really convenient ansich. Cup is not hot, fine sieve through leaves little broth, and appealing to look at. However: as already criticized by others, I do the same Passier. Two weeks use, then easily triggered, cup upset, 100 pieces. The side walls are simply too thin. But that's not the only problem. Many other glass ev would shatter if it falls over. The second problem is so that he ever tip over so quickly. And this is due to the following: Each your traditional glass has a thick bottom. And for good reason. To get the focus on the glass deeper. Then it tilts namely not so fast. And this cup? Who has no thick bottom, just one that is filled with air. The emphasis is thus much higher than for burlap and glasses. Would you therefore redesign the ground, and make the walls a bit thicker, would all be a great idea. So I can this glass but only someone recommend the slightly verschmerzt 20 EUR. And should order more then equal.