I have friends whose two boys were taught from a very young age how to behave in nice restaurants.
When they behaved, they were treated with respect and were made a part of the whole group. The took part in the conversation with everyone else and so, had a good time with everyone else.
When they misbehaved one parent or the other would mostly just give “the look” and that was mostly all it took. The parents decided what was for dinner, not the boys, and because it had always been that way, there was no argument.
I had another friend who was so impressed with her children, he walked over to her table with a bottle of nice wine, thanked her for how well behaved her children were, and filled her glass.
An older couple seated near us stopped at our table as they were leaving to compliment us on how well-behaved our son was.
Now, he was was no paragon of perfect behavior, but he had stayed in his chair and not screeched nor pitched a fit.
He did, however, appear a perfect little angel compared to the two or three families seated near us. Their children were running around the restaurant, chasing each other, yelling, and (Yech!) playing in the food still on the buffet line. The parents all sat at their tables, drinking coffee, conversing, and paying no attention whatsoever to their offspring.
I never found misbehavior and excessive noisiness "cute" in my children nor anybody else's, and I get less patient with it as I get older.
I'd pay this place a visit if I lived anywhere near it.