We showed up 15 minutes of showtime (they already took down the dessert party signage).
The server loaded us up and knew we wouldn't have time to finish drink 1, so she brought 2 for us along with the to-go containers which we would've needed regardless of time. She still had enough time to take a photo of us too so we weren't so late we missed out on big stuff.
I agree that getting there prior to 15 minutes before would be better, but if you get a FP you want you use like we did, you certainly can and won't miss much.
Here's what is likely considered the "worst" seats. (Last to show!) We had no problems with it at all.
Excuse the scribbled faces, privacy.
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