Pros: 1. Pretty well structured
2. MOST of the voice acting is good (one exception listed bellow)
3. The animation is good
4. The fun scene at the amusement part is well done.
5. This is probably the closest we'll ever get to a Raven movie.

Cons: 1. Taissa Farmiga is a pretty terrible Raven for most of it. The problems with her acting seem to dissipate over the course of it though? I assume the lines were recorded in order and she found her feet with the part as things went on. Or maybe I just got used to it.
2. Re: the film's title [spoiler]the movie does not really live up to it. There's one fight scene where the Titans get mostly curbstomped, which I mean, is fair because the League are most more powerful, and then Damien takes Superman out with Kryptonite. Thats it for JL vs TT stuff.[/spoiler]
3. Too much Damien Wayne. We've already had two movies mostly focused on him, and a third where he is a major part of it, and this movie seems to go backward on his character development a bit? I'm glad for how his arc ends though.
4. Jamie Reyes/Blue Beetle is underused. He is a very cool character. But this movie is mostly about Raven and Damien so its understandable.