I just want to be very clear on one thing, even my earlier post sounded a bit confusing.
It is NOT what time your reservation is for (7:00, 7:10, 7:45, etc) that determines your table assignment. The size of your party has ZILCH to do with it either; at our party this week it was almost all large parties (4-10) in the front rows. Many, many 6+ (including us).
What determines your table assignment is the day and time you do the booking of your reservation, no matter what your "seating time" is for, in comparison to when other reservations for your party day are made. And, who knows? Maybe cancellations can bump you up. Cancelling a reservation made previously for a later seating time in favor for an earlier seating time for later-made reservation can put your party back further, not up closer. DO NOT do that!
I've managed to make (by dumb luck the first time) reservations the day they opened. First time, party of 2 in the front row for a late seating time. Second time, party of 6 in the front row for an early-ish seating time (15 minutes in). Each time we were let in as soon as the party opened.