Microsoft hardware products have always been of excellent quality. It shows on this keyboard. The special features are: Backlit keys, detachable keypad, which can be docked on the left, and thus becomes a macro Board for Games, dials for volume and backlight, quick selection buttons for macros and shortcuts for Windows Vista Games menu and much more. The keyboard is really fully equipped. The keystroke is very good and accurate, only the stop could be a bit richer. In addition, there are no feet for height adjustment. But that does not at all. The keyboard feels as if you were typing on a notebook. I think that is a problem for anyone. The ergonomics of the keyboard is excellent despite the lack of height adjustment. The only criticism would be that the keyboard does not contain a USB hub to connect as a mouse can and thus to save a USB port on the PC. But I conclude, for example, my mouse and the keyboard via the USB hub of my monitor to what many screens's now possible and thus save myself a USB slot on your PC. I can fully recommend this keyboard. You will have many years of joy with it.