Not only did lvl sync allow me to play with friends on a job I had leveled much higher then them, it helped with level capped fights. I no longer was required to have lvl 30, 40, 50, 60 and 75 gear to do or help out with fights. Although level sync would nerf the gear on a scale( going into a lvl 30 fight with 15% haste on melee would be unfair lol) it allowed me to help people more often. Saw many shouts for help with fights that I would have been more then happy to help, I just couldn't afford to buy gear or had the room.

I think XIV could benefit from some form of level sync.