I trained at both when I moved to the area. In my brief experience, the curriculums were not functionally different.
The Machado school was severely lacking in the facilities department. Tiny mats, no showers, and only a single ghetto bathroom for both genders to change in. I'm not even sure how that meets building code.
GB Pasadena was fine, but I ultimately decided to train elsewhere due to the fit of personalities. YMMV.