I beat the game and here are my thoughts on the mechanics:
My biggest gripe is the camera FOV and the battle camera. You'd have to get good at switching on/off the 'locked on' camera in various situations to fight efficiently (without button smashing). The 2nd thing is during some battles, there would be events that would mess up my flow. Over time, I got better at wielding the camera and the mechanics of the game, but it's still small rock in my shoe.
I felt there was a lot of padding to make the game longer but I guess that goes along with expanding the FF7 lore & world.
Overall, I think the game's worth it.
I don't want to get into the story stuff because I don't want to spoil it since people are still playing through the game.