I'd like to get it, but it's not out on PC. I liked the original Injustice a lot (it's easy on the eyes for non-gamers), the ultimates are vivid (if repetitive after the first couple times), and the game oozes DC references (which I relish). That said, I'm impressed with the variety and number of response dialogues there are (the opening dialogue between two contenders at the start of a match). From what I've seen in the hour or so of videos, many characters have two opening animations and in some cases three opening banter statements. That said, Skullgirls remains my favorite 2D fighting game as far as gameplay with accessibility goes, Injustice is largely around meter burns, dodge/cancels, and juggles.
E: I really like the character/map art/details, though I'm not too happy that they rebuilt Harley to be more from Suicide Squad than from the Arkham series