I agree, it definitely depends on your child. Our DS5 did great during the early seating. He was served his Mac and Cheese right away and completed his dinner as we finished our appetizers. Either DH or I would take him to the club (he couldn't wait to get there), returned to the dining room and enjoyed a calmer meal.
DH and I then had some private time until 9:00 or so. We picked up DS and placed him in bed, stating he could stay up as long as he wanted to watch Disney movies. Of course, he was asleep in 10 minutes and we enjoyed wine on our verandah.
A lot of folks have kids that do better at the late seating. It really does depend on the child.