I came here for the lesbians and my review is: not enough lesbians. Damian dragging Dick around the city was cute I guess, the animation is good I guess, I screamed at the final shot, but overall: the only reason worth watching is Kate's dad being hella involved in her love life and inviting Renee to breakfast.
Not the best DC animated movie, not the worst. I'd say it's pretty entertaining if you're really into the classic Batman stories. If you're just starting out with these movies, you should probably wait a bit before watching it