Branding and psychology studies
I had grab some user who use this software as religion and as distinctive mark.
The use interface was designed to fast (no delay, change the information for each file, was is very frequent) and precise display (lot of information).
But the psychological effect is high visual stimulation, generation a brain fascinating.
The high speed of element sliding is implicitly linked to high copy speed (is wrong, and even more, in some time to use more cpu, slowdown the copy)
The quantity of options give a sensation of control (but generate really a greater control), then you are more confortable to use this software, event if change nothing for some problem (hdd or OS failure). The large quantity of information sit the sensation of controle (even is few information is really usefull, eg: remaining time)