Ins annoys me on mine. I've only got it on the number pad. Oh no... I've just spotted another top right next to print screen and pause break.

I don't know what the extra functions on this one does - probably assigned to things in Windows and I guess I could make them do something with Linux if I really could be bothered.

That aside, I'm reasonably happy with it. I wanted a cheap (<£20) wireless keyboard and mouse set and was about all I could find that was PS/2 (it connects to a 4 port ps/2 KVM switch I'm not in a hurry to replace).