I absolutely hated it. Total McDonagh wanna-be. The "funny" dialogue was just stupid and forced, and the disturbing events of the play feel purely for shock value, which made me furious. It was structurally a mess, and everything it was trying to achieve dramatically has been done 1000x better by other plays.
The only thing of value it had to offer, in my eyes, was the subject matter. I've never seen a play about Northern-Irish identity, and I actually found it very illuminating at times. What a shame that the playwright spent more energy trying to shock the audience than actually trying to get to the heart of the meaningful topic.