You are either going to love the main story in this comic, or hate it. It is a mash up that would not normally occur, and it is quite funny. But you have to be in the mood for it.
The plot is basically an excuse for groups that do not normally fight, to fight. Because the destruction of Tweety or Sylvester will result in the death of all cats or birds. If you embrace the idea, you will love it.
There are some wonderful digs at character design and DC plot points.