Having thought about my last post and bearing in mind that we are on the Private Flying forum I feel that I need to expand my view.
QFE is only ever of any value for pilots who are doing nothing else but flying locally.
QFE gives you absolutely no idea of your height is in relation to obstacles on your map which are measured in QNH (put simply) or in QFF (if you really want to get complicated).
Let us put it simply; all of the obstacles marked on your charts are measured in feet above mean sea level. All airfield heights are given in feet above mean sea level. QNH (or QFF) will give you such a height on touch down.
So what are the perils of using QFE?
Imagine a simple "bimble" down to Compton Abbas for lunch. As most of us know, Compton Abbas is 811ft amsl. So you set the QFE for touchdown, land and have a nice lunch.
After take-off we head east towards Goodwood via Stoney Cross and forget to reset the altimeter. The base of the Solent area is 2000ft amsl (QNH) but you are now at 2811ft amsl and the man on the ground is not very happy about that.
QFE is great if you NEVER want to leave the circuit but otherwise learn to use QNH and stay out of trouble AND stay alive!
P.S. Can you imagine how impossible it would be to set QFE at Nairobi, Addis Ababa or Asmara?