We just went to the Shark's Grill on Wednesday. It was our priciest lunch of the week...4 adults and 2 kids came to 250 with tip.
My one son didn't want a kid's meal...he prefers "regular food", but the steak was $32, so he just split with the adults. So, 1 kids meal and 4 adult entrees, bottle of wine, a few beers, one dessert was $250. The food was good but portions are small. It was enough for me, but I think my dad wanted a bit more! The atmosphere was beautiful, but the service was slow and not up to level that you would expect from an upscale menu.
I had a seafood trio and the scallops were cheap bay scallops, not Peconic bays. I expected 2 or 3 real Sea Scallops for the price. It was good, but not what I expected.
Overall, it is pricey for what you get. You are paying an amusement park premium. I think Mythos at Islands of Adventure provides similar, if not better quality, at half the price...our lunch their was only $140!