I used Apple Maps this weekend and it worked well. The reroutes were quick and it gave accurate directions. Sure there may be many glitches but I've had lots of issues with Google maps in the past.
I have had no problems with it at all. All the features that Apple Maps doesn't have in comparison to Google, I did not even know Google Maps had them in the first place. So I don't miss them, but I understand why it bothers people.
Also, there were plenty of times where Google Maps gave me awful directions. I always preferred to use my Magellan GPS until it was stolen.