Keyboard looks great but no insert-delete-home-end cluster means an instant no from me in any keyboard, how do you people move without those keys? I've cringed enough in my life seeing people pressing the arrow keys and waiting 5-20 seconds while the cursor traverse an entire phrase/paragraph.
Mac users don’t need them. Not sure about Insert, but Cmd+backspace, Cmd+up or left arrow, Cmd+down or right arrow give you delete/home/end respectively. Alt+up/down arrow gives you page up/down.
The fact that you don't need them doesn't mean everyone else doesn't use them, also, how do you know what every Mac user thinks? Also you know there are other OSs around don't you?