Picked this one up the other day, for the hell of it. The only reason I didn't play it sooner was because it really didn't look that amazing, and I don't believe you can have a Mortal Kombat game without some good old-fashioned violence.
Playing it now, I'm not too fussed that I missed it. I can definitely see the engine's similarities, with MK 2011 being a more refined/updated version, and this being a rather rough attempt. Most of all it feels incredibly clunky - an unresponsive fighter game isn't too appealing. Played a little bit into the story before I got bored; I'll admit that whilst the story is terrible and the cutscenes are cringe-worthy, I chuckled at seeing some of the MK characters' reactions to being teleported into the DC Universe. :-P