JFK JetBlue terminal is super nice! They have some really good high end resturants there. It is not the garbage low quality fast food you find at most Airports
There is a fancy sushi resturant, a steakhouse, burger joint. The food is quite good and reasonably priced for an airport.
Also there is free WiFi at JetBlue terminal.
But you should see if there are other direct flights from where you are on another airline. If there are try to get your money back from jetBlue.