I've fed the Fromm Gold Adult, Gold Puppy, and most of their Four Star line with no issues at all. Solid poo, good energy, great coats, and overall good health.
I only add a little wet food (Fromm gold), water and two to three times a week a raw farm fresh organic egg.
As to what specifically in Fromm is different...not sure
Jasmine - Female Miniature Poodle - born Aug 15, 2010
Loker Delgado Von Stalworth - male GSD - born Jan 26, 2012
Koda & Zazu - 4 year old male cats