When to use limit break?

[TaurusGilgamesh]

In summary, a limit break is based on the situation. People normally get used to it when to use it or they are just not very efficient.

So you can use a limit breaks to get rid of an annoying mechanic, like a poison tail or Bismarcks Snakes (when the DPS Check is bad though). You can use it at full gauge at the last boss (when there is no special mechanic and a limit break could really help).

Imho the worst thing people do is to hope for a Level 2 or 3 Limit Gauge and don't use any limit in the end. When there is 10% left of the HP (and the boss is easy) then use the limit break even on level 1. A Limit break is NOT(!) a finishing move
Ok, new players may not know what a limit break is or when to use it. But I also see this behaviour at monks in poetic gear.