From what I hear, the food options are different every game. Last Friday, the food options were corned beef, fried pollack, mashed potatoes, Italian sausage, ravioli and hot carrots. Especially the food there, which was buffet style and all of it was free of charge. The Hyundai Club is located in the field level section on the first base and third base side.
Through a friend of mine, who graciously gave me his season tickets to that game, I had access to the club as well. Last Friday while attending a New York Mets game at Citi Field versus the Los Angeles Dodgers, I got the privilege of going in the Hyundai Club there.