People tend to check in during these times:
Food and drink not allowed, so finish up your beverage or leave it in the car.
Bring something to do! I always seem to come in during the longest wait times
Bring something to do - other tipster is right about fast check in but it's slow as hell after that .... Waiting. Multiple people have given up and left - decide before they take you back to a room.
Fast check-in and nice people!