My hubby and I almost did not go here because of the shctick, but made reservations because we wanted to try the peanut butter and jelly milkshakes.
The first time we went, the waitress played it up just a little and we enjoyed our milkshakes so much that we wanted to come back.
The second time, the waiter was full into his role and we had such a good time and laughed so much! Surprised us at how much we enjoyed it. We will definitely make reservations next trip.
I say go and try something new, if you do not enjoy it, do not go back!
Okay, so I give you that advice, now you can try and convince me to try communal seating at Biergarten!
We've eaten at both Prime Time and had a great time. We did tell them ahead of time when we checked in that we had one member of our party (DD) we didn't know how she would react and asked for her not to be teased - one of our party also told the server.
They left DD alone, but she enjoyed watching her aunt and grandmas get 'scolded' by our new 'cousin'.
We eat at Biergarten every trip now and have had pretty good experience. Our first ones were when we had a party of 8, so we took up the whole table. We have since then eaten with as few as 3, so the majority of the table was strangers.
Where people sit and ho is allowed to sit where are big issues for DD. But, she knew the rules ahead of time and we made sure to tell the person when we checked in that we needed DD on the outside with one of us sitting next to her and the other across from her. That worked well.
Each table on the entry level has one short side to the railing nd the other short side to the corridor. The rail side might work better for one people.
Since it's a buffet, you are not passing food back and forth like if it was bing served family style.
You could get tablemates who keep totally to themselves or, we have had some who are quite friendly. That's the part that you don't know.
If it's not busy, it is possible that you might end up seated with just your party - especially if your group almost fills the table and asks to be alone. No guarantees though and you could end up with a group being added to our table after you re seated.
The entertainment at Biergarten is very good. The polka band is good and most people there enjoy the music. It is loud though, so if someone in your party has issues with sound, they may want to wear their earphones/sound deadening earmuffs.
We've also been at tables where one child was engrossed in handheld video games. I assumed he had some need to withdraw into a comfort zone.
We've also eaten at Whispering Canyon a number of times and had no problem getting a regular style service when we have asked for it.
waitress that really got into it, otherwise there were just small things (kind of like how an elderly aunt might come across). The exceptional waitress was a hoot... when DH ask for extra napkins she brought him (and put on, LOL) a plastic kiddie bib, she had us sing, she teased, ect... ALL waiters/waitresses that I observed were not mean nor was their "teasing" or antics "over the top". It is a family favorite and one that requires multiple ADR's per trip! 
