Ah the QFE/QNH debate - almost as old as aviation itself!
The insularity of the British (shades of empire perhaps) who love their QFE! Have used boths systems and I know which I prefer - QNH every time! That said so long as you understand and apply the system you use there is never a problem.
Remember well going into Heraklion (Crete) on a beautiful summers day. ATC working like a one armed paper hangar coordinating the inbound and outbounds (same departure/arrival track). In the middle of the RT mayhem DanAir asks for the QFE - exasperated Greek controller replies - "Danair the QFE is five millibars less than the QNH!!"