Not astounding, and not all of the plot and aesthetic choices work IMHO, but better than I had expected, and quite solid in the Bruce/Selina angle of things (which is in fact the driving thread of the narrative).
It has perhaps more ongoing plots than it should've, but it was fun. It doesn't need to be a LEGO movie; most of it would work equally well in other forms, although Batman/Bruce's voice work is precisely as good as it needs to be.
The Red Hood sort-of-flashbacks... I wasn't expecting that. YMMV, but I found them hilarious. And then a bit heartbreaking, of course.
Continuing with a theme of comics-heavy procrastination, I read (or reread) things like the second volume of Injustice, Batman TPBs, Marvel TPBs, quite a bit of Valiant, quite a bit of the Black Sky and Project Superpowers worlds, some Gold Key, Injection, and a fair of other stuff, including a couple of one-offs.
It was a fugue in more than one sense; comic books have so much turned upon themselves as a medium (driven partly by economic forces, and partly by artistic path-dependence) than to some degree they are about comics (even leaving aside Morrison's explicit ontological antics).
... means, as usual, an ill advised comics binge: The Life and Death of Toyo Harada 1-4, Li'l Gotham in full, The Complete Doc Unknown, The Steam Man, and a reread of v1 and 2 of Umbrella Academy. Some rhymes of structure and theme, unsurprisingly. Loops and crumbling near-utopias and holding the line or failing to.