Rebirth is a great game with a very satisfying and deep combat gameplay, a charming party with their own gimmicks and mechanics to add flavour in the combat when you start getting tired of play Cloud-Tifa-Barrett
My issues with the game are minimal, and not detrimental to overall game which are confusing story, specially if you never played the original, excess of minigames (some of them mandatory) and repetitive nature of exploration in the openword, which is simply not fun at all, more like a list of shores you need to do every time you reach a new region
It's a A+ game if you only play the main story and forget about the side content, which by itself is enough to provide 50 to 60 hours of gameplay