Stepdowns should be a point of emphasis during instrument training; right along with not fixating. They are relatively high on the list of busts for Inspectors, DPE's and check airman. Also worthy of note for newbies; make sure you have the means to ID the stepdown(s) before planning on or accepting those types of approaches. Also remember that the stepdowns inside the FAF will also change your minimums and that can also affect, beside the obvious, how you will operate in the vacinity of the runway/traffic pattern (Situation dependant; A lower Min. could allow a simple turn to downwind while a higher Min. without the stepdown could require a crossover, Etc.)