I liked the adaptation from the story except for Glenn until the whispers started showing up again, and also the weapons were homogenized into mako-surfing whales. But it was still fine despite removing Cid's hometown and Wutai, reducing the latter to a warring conflict that goes nowhere and Don Corneo trying to take over the Saucer, at least until the Ancient Temple when things started going downhill for me. But hey, at least we got an unnecessary conflict at Costa Del Sol's beach (thanks, Hojo) and another underground facility made to pad the runtime instead of giving us one of the aforementioned villages.
I'm glad you think Rebirth is great, because I don't. In fact, I think I'm done with the Remake trilogy at this point, personally.