Thanks for clarifying that, Peter. I think Urquhart was probably a little over-enthusiastic about 'all ranks' enthusiasm for the weapon, but....
In fact, most of the damage during the Graebner attack was done by one 6-Pounder, Sgt Cyril Robson's gun.
The Gammon Bomb also played its' part in the Arnhem fighting. The PIAT for sure was no 'wonder-weapon', but in the right place at the right time, it was handy....