Seems like one of the most impressive aviaries anywhere. When I visited ZooMiami a couple years ago, I ran out of time and did not get to go into this aviary.
@Arizona Docent One could make the argument that Wings of Asia is the BEST walk-through aviary in all of North America. The large San Diego Zoo aviaries (Owens and Scripps) would be the likely other candidates but the one in Miami is spectacular. There are even Sarus Cranes roaming around in there! Omaha's Henry Doorly Zoo has a 4-acre walk-through aviary but it is a bit outdated these days.
I re-arranged my Florida trip partway through to give me two or three extra hours at Miami on the last day largely because I hadn't had much time to spend in this aviary on the first visit. It's very impressive indeed.
