I found this movie to be really entertaining, intense, and an improvement from the first one as well.
The characters were well done in my opinion. In the beginning I really thought they'd be one dimensional, but that wasn't the case. And I fell in love with most of them instantly.
Secondly, with the help of minor and major elements, I think the movie really sold the impact that the antagonists had on our protagonists. Not just from the first movie, but also from this one. Like how much damage they've caused to people's lives. I didn't expect the movie to take the time to even regard these things, but props to them for doing so.
Lastly, I will say I found the beginning a little slow, but after giving it a chance, it was definitely worth it. If you've watched the first film already, I recommend that you watch this one. It's thrilling, and it's got a good story.