I waffled on whether or not to request this one. I, too, thought "We Need To Talk About Kevin" was a powerful read. I ended up deciding not to ask for this. After seeing your review, I'm kind of glad about that.
I think you made the right decision. There was too much that I struggled through to recommend it. Though it did have its good moments that sent chills up my spine so felt it deserved at least a 3 rating.