I have not yet actually used UEFI. I was planning on a new build last summer and somehow did not do it. But I started reading up on UEFI and already was using gpt partitions with BIOS booting, so I somewhat understood the gpt part of the issues. Hope to build new system this summer.
Hope you can help occasionally on UEFI issues. Right now it seems to be mostly Yann & I. Fortunately Boot-Repair automates a lot of the issues if a user installs correctly.
But with UEFI and new choices with UEFI or BIOS booting and then installing, new partitioning with gpt, secure boot being different with each vendor, and the UltraBook issues of RAID & dual Optimus video makes the install process very complicated for a new user.