Boarded Anthem yesterday with the Key out of Cape Liberty. Wanted to report back with our experience so far as I know some have recently been asking questions specifically about this ship. We did not have a separate line to go through security, but did to check in and separate waiting area (though is no longer by the star class waiting area/snack).
Upon boarding the ship, they have a table front and center for you to get your temporary wristbands and Key paperwork. I asked the woman at the desk how many they had on this sailing and she told me they had 180 Keys, so seems like prior posts are correct in that they may have bumped the quantity up to 200 per cruise (as of the day before our ship Keys were still available on the website). Our private hours for the activities are more limited than initial cruisings with they key, but may be due to the cruise being sold out. The private hours are as follows:
1 Rockwall on day 2 from 2pm - 3pm
2 Flowriders on days 3 and 7 both from 9am - 10am
1 i-fly on day 5 from 7-8pm (and told we could each make another reservation for this in addition to the private hour since we had the key)
1 North Star on day 6 from 1-2pm
We ate at Chops lunch embarkation day which had the same limited menu as others have posted, and did not fill up (plenty of space left in the restaurant). Both of our steaks were over cooked but it was a decent meal and pleasure to not have to fight our way through the crowds in the Windjammer. I had read reviews about the lunch taking a very long time but our entire 3-course meal was served to us in under an hour.
Fruit plate arrived in our stateroom today.
So far, not bad for $19.99 price. Would recommend for those who like a little extra on their vacations.