I only ever used KH2 Trinity Limit during Underdrome battles and maybe in the Sepheroth fight when he uses Heartless Angel. The only other limits I used for more than completion were Tron's, Genie's, and Riku's once or twice intentionally, and a couple times when I forgot to turn off auto-limit before going through the door.
Although I love Trinity Limit in CoM.
Although I love Trinity Limit in CoM.