I think it would be one of the best places at WDW to have that sort of celebration.
Be advised - they are supposed to be adult oriented and don't have their own children's menu, nor is Bistro on the dining plan. It's a small dining room. I was there last Saturday, counted five children including an infant and a toddler, so families do attend and bring small kids (kind of goes along with the location in a theme park I suppose). The infant cried for most of our meal, but then it was only one infant, not sixteen infants.