All right. Outside of the US, it may have been bad. I don't have any personal experience with that, so I'll concede that point. The original comment was "It had real difficulty everywhere except (parts of) California". I pointed out that that was a hyperbole. Apple Maps is fine in the vast majority of the United States, and fine with a significant portion of iOS users.
I am in Florida and use Apple Maps to travel all over the state. It was wrong countless times, from location of restaurants to taking me to wrong addresses because I did not spell "northeast" as NE. Worst of all it did not find most local businesses. Unless you have personally used it to travel all over the US, how can you say it works everywhere?
I can say it's been fine in Georgia, South Carolina, Tennessee, Kentucky, Indiana, Michigan, and Wisconsin. I've been using it since June, and I just haven't encountered any problems that seem to plague everyone else on the Internet. Maybe it's just good luck on my part, but whatever. At least everyone can be happy now :)
You can't just dismiss the criticism because it made for a good headline.