I work there. We have recently extended our books on opentable to 6 months in advance.
We had no reservations. Group of 6; walked in and were sitted immediately.
Caveat: the bar has a different menu, but was easy to just pop in and grab a spot. A good alternative if you are shut out a reservation or you didnt book but decide to go last minute (like we did).
You can make reservations a month in advance, and I highly suggest it. If you are making lunch reservations, you could probably make them a bit closer to your date, but if you know when you're going....act promptly. :)
Yes that's what I did about a month booked through the open table app.
I did it about six weeks out on open table.
You can make a reservation 1 month prior to the desired date.
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