Pleasantly surprised by this one and can't wait for the fourth season.
The plot with the sick girls is only the first season. The main characters, location, and much of the supporting cast doesn't change though as the lawyers continue to tackle emotionally and legally challenging cases. I wasn't sure I would like it even after the first episode but I've grown to love watching these characters fight for justice in this unjust world. They're interesting and real. The acting is great. I can barely look away from the screen.
But one of my favorite things is the season finales. There's no big cliffhangers or a bucket full of unanswered questions. It wraps everything up. There's always room to continue the story and stay interested in the next season but you don't have to wait a year to finish the main storylines. And, if it doesn't get another season, the end of the previous one feels like a good end to the story. It's satisfying and much less frustrating than most. They did a wonderful job.
It would have been nice if there were more episodes in a season though. I feel like they could have explored more of the side characters if they'd had more time to do so, especially in the first season. Instead, there's a lot of important characters to the cases that barely get five minutes of screen time.
The second season started slow and took a while to get to the point but the third season was better. There's some writing issues and some lose ends that just don't seem to have time to get tied up. But, overall, it's one of my new favorite shows and I will be eagerly awaiting season 4.