I didn't play other FF yet, but XV I was enjoying just at the begin and, as the time and history roll on, I just wanna finish soon as possible. To understand all the content that game delivery you will need to watch the movie made explaining the history before the game tell his own history. The game show us a open world and many boring side quests to do, but when the game is in the middle It become extremely linear. The history and characters didn't get me and the RPG combat can be useless if you make side quests and buy good itens like armor and weapons.