Had a $50 Aria credit so I decided to go to Jean Georges, located on the 2nd floor near the Buffet.
Came as a solo diner and ate at the bar. Bartender was a great server and very informative with drink recommendations (got a local beer on tap, which was very good). Was there for the $69 early evening dinner, available 5-7pm daily: appetizer (went with the caesar salad), main (got the 8oz filet mignon), dessert (warm chocolate cake with ice cream). The caesar was average at best. The filet mignon was very good especially with the array of sauces provided (complementary). The chocolate cake was nothing special.
OK value even for the $69 price. As expected, service was impeccable. The restaurant space itself was beautiful - dark but modern and clean. Not sure if I would have come here IF i didn't have the casino credit