We were there in early June about a week after the ride opened. The lines were a lot shorter in the evening than in the morning.
With the park closing at midnight, we were able to ride twice during the last half hour of operation. The posted wait time was 80 minutes, but the actual wait was about 20 for the first ride and 10 the second time.
During an EMH night, the wait was about the same at 3 am.
I've seen video of the chaos that ensues early in the mornings. I prefer to avoid that mess.