FF games are not for everyone. I personally don't care for them. I tried hard to get into 7 and the one after it but both left me bored after 5-10 hours. They are great games for sure, but not everyone will like them. If you've never played one before, I'd recommend renting it when you have a spare 5-10 hours. At that point, you'll either want to keep playing or you'll be bored to tears from reading some story you don't fully understand for 5 hours. There's usually a side game along with it (blitzball, card game, etc.) that you'll never fully understand and get frustrated with.
By no means am I knocking the game or the players.