After a quick delivery, I tried the same cartridges. The handling is very simple as well as the originals and the printer (a Canon Pixma MG5350) recognized the cartridges without problems.
For print quality I can only partly provide information, because I mainly prints texts and only now and then graphics and rarely pictures in which this could make a difference to the original cartridges noticeable under certain circumstances. That's why I could not tell the difference in print quality compared to the original cartridges and the result is absolutely satisfactory.
In summary, it is clear that the price-performance ratio is super. As far everything works fine (and I have these cartridges now been used several times), I will decide in the future again for these printer cartridges and can safely recommend it!
