Quality is abysmal.

The set looks once very chic.
Unfortunately, that's about all that is positive about it.
The build quality leaves much to be desired. When filling the ink cartridges can be employed only with considerable effort, which you have to be extremely careful that a nothing slips out of your hand, otherwise the wars with the filler. The apparatus therefor is too wide in diameter, so that even changes the ink cartridge on closer look at their form due to the tension.
This was at the beginning of the errors that stood out.
Even the writing performance with the filler is not particularly good. He tends to scratch, but what I initially took into account, because you can change the spring with most fillers.
The same applies to the pen: also this unpleasant scrapes while writing, but fortunately can also exchange the mine.
Over time, the material wears out disproportionately fast. The cap of the filler is their function is no longer to, so I can take towards this anywhere. The use was just at your desk at home possible.
The cap should be while writing can not attach to the other side of the filler / coolies, the material scratched very quickly.
The same also happens when the caps are accordingly used: namely to close!
The handle points of both writing instruments are extremely fast and scratched the paint (if one can call it that) is no longer available. As a reminder, you get black fingers!
I do not understand how it contrives to drive out bad quality at such prices. Each Aldi, Lidl, etc. offer much better quality at significantly lower prices.
Absolute bad buy!