I've rotated at Palms West, and Columbia, two of the hospitals at PBCGME, and have friends currently in their residency programs. The EM program closed for many reasons, all beyond the control of the medical education leadership. I was, however, impressed with the way that the program, and HCA, not only used tremendous resources to try to save the program, but went to great pains to place all residents in other programs (and expense...they lent the funding for all of these residents to their new programs!).
No program is without its problems, but I wouldn't hesitate to a residency program at this rapidly expanding consortium backed by a huge, stable hospital company.