This keyboard has made me 3 years before dropping overnight. I think it is because, being white and matte rubber that quickly takes fat fingers, I needed to clean more often than previous (with alcohol swab). And cleaner, strong pressing the dirty keys and damage the small spring underneath. So the key is no longer responding, and as Macs keyboards are not removable (it is stuck, no screws!), We are left with a good product for the trash. In short, super nice touch, good spring of keys, but in heavy use (student, journalist, translator) provide that it quickly dirty, cleans moderately well (still a bit gray even after the alcohol) and deteriorates in about 3 years. As for saying that it is silent: yes but nothing either exceptional, good Logitech is equivalent noise. Also mention: it has two USB ports, which is convenient because the mac computers are often stingy in connectors. But they are weak supply ports, they support a USB key or a mouse, but not an external hard drive or camera.
