Liked the usage of Captain Marvel
It seems as if a lot of people were worried that since Captain Marvel was just introduced she'd be the one to ultimately take down Thanos, but that didn't happen at all. She shined in the couple moments she was in, but didn't overshadow the original Avengers or over stay her welcome.
Seeing her in Endgame makes me like her more as a character overall. I like the power she demonstrated, but again didn't overhave the core cast.