I'm a former AUA student, did all 5 semesters for basic sciences there. The professors there were mainly from India and had either an MBBS or some other degree. The guy that taught Genetics/Biochem was a nursing PhD from Germany. So that should tell you something -- don't have super high expectations of faculty when going to the Caribbean. You gotta study hard on your own if you want to get passed Step 1. For what it's worth, very little of what I learned at AUA during basic sciences helped me pass Step 1.
Step 1 [X] Step 2 CK [X] Step 2 CS [X] Match 
Core Rotations: OB/GYN [X] Surgery [X] Family Medicine [X] Internal Medicine [X] Peds [X]
Electives: Infectious Diseases [IP]