For the 733 etc, flying track up on the EHSI makes letdowns a doddle .. one does the normal brain strain nav solution guesswork and starts out with a best guess heading on the heading bug and the track display tells you the TMG ... corrections to track are a breeze and flying an ILS to the ground was never so easy ....
Being the dinosaur that I am, I resisted it for a while .. but it didn't take too long before the simplicity seduced me ...
At the end of the day it is still a preference sort of thing, subject to a particular operator's SOP directions, of course ...