Just got back from the movie, and while I don't think I liked it as much as I liked the first one, it was still really good. I'm not a huge DC fan, so I know I missed out on a lot of jokes, but the ones I did catch were really funny. I'd absolutely recommend it, especially if you're into the source material.
...And that's the last time I attend a 4:15 showing for any movie ever. During every serious, emotional, or quiet scene, a small child would start crying (Though, this is a children's movie for children ). The people in my theater hardly even laughed, though I guess most of them were kids and unenthused parents.
Alright, spoiler talk...
The Swamp Creature from Monster Fighters is in it 10/10