We have been using our old shower head for many years. Fortunately, SVB still has this in its range, so we were able to replace our defective old shower head quickly and cheaply without any problems.
When about 20 times use the metal head is broken by the plastic handle, the thread is in the metal head. No hit, no other unusual load. Maybe an isolated case, but I doubt it. Also, the handling is wengier pleasant than the here also offered pure plastic variant. I advise against the product.