A McDonald's restaurant is pictured in Encinitas, California September 9, 2014.  REUTERS/Mike Blake
A McDonald's in Encinitas, California.
  • McDonald's is reportedly planning to offer a $5 meal deal for a month this summer.
  • But some customers are already saying that the promotion isn't worth it.
  • Diners are cutting back on fast food because of costs, eating at sit-down restaurants or at home.

McDonald's is reportedly trying to win back customers with a $5 meal deal this summer. But some diners are already lampooning the offer.