The EFC & All In One Tree are different beasts altogether.
The All In One has (had) all individuals linked together such that you could traverse family groups very easily. Each family breaks off the main family line in an ordered fashion.
The EFC concentrates on generations and gives no clue as to the linkage between individuals.
To have to search on the EFC is not as intuitive as a quick scroll on the All In One.
I continue my search for the product that provides an equivalent invaluable utility. Until then my FTM V16 runs in a virtual XP pc.