We arrived at WL around 12:30 pm a couple of weeks ago. Our assigned room wasn't ready, but the CM said if we wanted a room immediately, there was one ready on the 1st floor. Not really wanting to be on the 1st floor, we declined and waited for our 6th floor room. Got a text at around 2:30 with the room #.
We did check in as early as 7:30 am once (did a split stay at AKL) and our new room was ready that early. We were very surprised!