I didn't care that most of it was a dream, it was still a fun read for all the reasons listed above.
My favorite part though?
The end. I loved seeing Bruce and Damian fight crime together and then at the end just cool off on top of a building together as the sun rose. It was both funny and beautiful at the same time. The same goes for the beginning as well, the scene with Bruce, Damian, Alfred and Titus in the cave was perfect.
And I too do not believe for a second that Damian is dieing any more so than I thought that the Joker had permanently disfigured all of the Batfamily in Death of the Family.