Basically, I am very pleased with the appearance and the function of the glasses. It looks great if the coffee flows into the glass of the machine. The Espresso keeps well its temperature and the outer wall is maximally lukewarm. However, have 2 of the 4 I ordered glasses of a processing error. The glasses wobbled on a level surface, since the silicone seal is a bit too thick at the bottom. I myself have resolved the issue in which I have worked a little poetry. Slight irregularities are otherwise in hand-blown glass, I think normal. The other two glasses I have no complaints. Even water is still none occurred with my glasses in the interior, both in manual as well as machine wash.
