I enjoyed this episode.
I appreciate how grounded it felt. The writing, the acting, the dialog, it all had more believability to it. It wasn't filled with a bunch of quippy Marvel-esque dialog. Even nurse Chapel was acting like an adult in her short little scene.
They also managed to have likeable child characters. Often kids can be insufferable and annoying, but they were both well written and well acted.
There's been some criticism that this story was lifted from the short story "The Ones Who Walk Away From Omelas", but I'm fine with pulling inspiration from elsewhere, just not copying it. Star Trek has always had classic literary inspiration.
I like M'Benga. He feels the most realistic as a character. Like an actual doctor and there's a certain warmness to him. The setup with him and his daughter is nice.
This isn't a perfect episode. It's not a great episode. But it is a solid episode.