1. it is very hard to open to access the filter, you must return the gold filter every 3 months, every time a tile
2. the cartridge itself remains easily stuck in the handle, making it unpinned often! The black beads are spreading everywhere and you have to throw yet almost new cartridge.
3. the area which screws to often access the cartridge eventually flee
And when in addition I read the comments of those measuring devices ... I am told that it is a ripoff
Exorbitant prices, poor quality