I wouldn't call any meal at BOG "amazing," but we have enjoyed all three and, to be fair, it is probably the best that MK has to offer (whatever standard that might or might not set). Had breakfast there last month and thought it was a pretty decent deal. $19.99 per adult seems high at first, but you get refillable drinks, a pretty extensive pastry platter and the entrée, so it could be worse. As for the food itself, we very much enjoyed the cronut, the open-face bacon and egg sandwich and, above all others, the croque madame....and the extra pastry platter that is included with everybody's meal is a nice bonus for the meal in general. I would order any of those three items again. Others in our extended family group had the eggs Florentine in the pastry shell, as well as the veggie quiche, and both got pretty good reviews, too.
With that said, it sounds like you've already experienced the atmosphere of BOG, which to me is the only real draw, so I would just suggest that you study the menu. If something sounds appealing, then go for it. But if nothing is screaming out at you, then it's not necessarily a "must do" since you've already done the restaurant itself.