Since the OP is in Argentina, it may be noted that our South American PDIC instructors are usually some of our best due to their heavy technical training and experience. PDIC Brasil paved the way for a DIR recreational through technical program from OW through AOW, specialties, pro level and all the way to wreck penetration, cave and trimix.
If the dive center boasts lots of backplates, wings, long hose primary regulators in their inventory, you may be quite lucky to have access to some incredible instructors.
PDIC is family owned. While PDIC was one of the first agencies to have online C-card processing for instructors, the site doesn't allow instructors to update their own contact information. Instructors need to notify PDIC to remind them to update their web info if they change their contact info.
One of my friends, a PDIC IT named Mark, moved from Hawaii to Japan to Vietnam this year alone. He processes C-cards online and uses the telephone to order materials. HQ is a little old-fashioned. They prefer instructors to call them and let them know what they need and how things are going. This seems strange to a younger Internet generation that keeps in touch via Facebook rather than just calling friends on the phone.