I would definitely say atrocious at times. I've seen first hand and through videos online that at times guys just refuse to block to certain players. Guards lets DTs go untouched at times almost immediately for a sack and Tackles do the same thing. As far as defensive line, ends still take weird angles at times.
Something really needs to be done with line play though as it's currently too rigid, too much win or lose. I'd like to see a DT bull rush a guard into the qbs lap and stick out an arm and grab hold of a shoulder pad or something. APF had a "reach" mechanic for things like this and I think it's something that is overlooked