The main features: stable and break-resistant, comfortable to hold and at the same time beautiful.
The cups are not quite cheap to buy, but I also never a kaputtgegangen: despite dishwasher, wash roughest quickly or even once a nudge from the table.
They are made to last and look hot with or without drink good.
There are no Teeränder, in the dishwasher it is always completely clean and also the Hand wash they are easy to clean.
The rim is slightly thickened, I find that enjoyable to drink.
The handle is large and remains touchable even at extremely hot drinks.
What I have like the size: the cup is slightly larger than normal cups and just when I make tea bags is the amount of water enjoyable, otherwise the tea is me personally too.
The criticism here is not the seams clean is true, I think it's not a problem and they have no sharp edges but just visible.