chic but with quirks

Have a good piece for almost a year in use. Now I'm ready to dispose of the thing. I do not get tight aerator. Right from the start it dripping talk time there. Now the water is no longer in the sink but already on the walls. Have it with descale tried without success. Then I though the aerator exchanged no improvement. The commercial spare parts did not fit on the thread and it swelled even more water out than before. The attempt to replace only the seals was unsuccessful. Furthermore, the water jet intensity is very different when you go from hot to cold.
The next time you buy, I give more and better from what was then reasonable.