One of the biggest problems I've been encountering how slow Limit Break takes to build in all non pre-formed content. From the stat squish and gear bloat lately LB2 isn't even built until the boss is sub 5%. No matter what DPS I am, I'm not going to LB2 a boss at that time, I'll stick to my groove and kill the boss in what is probably only a few seconds longer depending on what mechanics are going on. Absolutely no boss is worth a LB1 unless it's to pull the boss with ranged LB1.

In times which you're just given LB3 I'm normally fighting someone to use it, such as in Aglaia's final boss. I still think that the bigger part of the issue is the rarity in which Limit Break is actually available for use, the fact that it's a party resource and the negligible effect it normally has outside of LB3.