pretty decent, especially stacked against the other D2D DC crap
there are some silly moments, eyerolling dialogue here and there, and it's missing the kink from the book (end plot is a lot different, too), but the fight scenes are well-animated and the story is fairly well-told
there are also cameos by a lot of "twisted" versions of dc heroes throughout the movie
and i liked this owlman better than the comics version, to be honest
there's a ten-minute spectre bonus short on the dvd i haven't been able to find, supposedly that's done in the old "horror avenger" 1970s style and is pretty trippy