Straight answer: He trusted his crew to do their jobs and then let them do it. Listened to advice but was not hesitant when a decision needed to be made.

Meme answer: That damn wraparound shirt and his custom martial arts style.

I'd say he was an effective leader, but 'good' is open to debate.

He was willing to put himself in harm's way, but also tossed his no-name red shirt minions into fatal situations on a weekly basis.

Script writers.

Sorry! 😜

He is open to self reflection.

Often praises his crew.

Isn't a bigot. Though he does let McCoy constantly make racist Vulcan comments. So he does enable it a bit.

Also he looks good in velour.

He takes all the alien STIs first.

He. Talks. Slowly. So. All. ...canunderstand

The ability to make instant decisions.

Can seduce alien females.

The ability to hold stomach in without needing a corset.

He needs his pain