My expectations eating in AC J is that the food will be good enough and wholly unmemorable. I am occasionally disappointed. I don't recall any particular meal at all, let alone a really amazing one. I know I've had a few bad ones, but I don't even remember them in great detail.
It's always possible that one's occasionally disappointing meal might appear on one's first flight in AC J. I would suggested such a sample size is too small from which to draw conclusions.
In the long run the food will usually be fine.