Yes, some people get in line half an hour before the doors open, but I've never had a problem getting a good seat. One thing that makes all of the seats good is that there are monster TV screens on each side of the big light fixture above the table so that everyone can watch the instant replays. It's easier to see the monitors if you are back a few rows.I believe it is first come, first served. So people with tickets line up early to be first in the door. That said there is no bad seat in the house.
Remember to bring flags if you have them.