Obviously there is no benefit of GMO foods to the consumer, but plenty of potential risks. There is not one approved GMO trait that any consumer would feel they get a benift from. Most of the technology has to do with round up resistance so when farmers speed through fields spraying herbicide they don't have be concerned about over-spraying and killing their round up resitanct crops. As a friend of mine once said " If round up can't kill it, I sure don't want to eat it.
Such experimental, untested technology only really benefits the producers of the technology- the biotech companies. For more in depth information on how imprecise the technology really is in regards to using a virus as a vector for the transgene check out this Interview with Charles Benbrook, Chief Scientist for the Organic Center. To learn more about the myraid of health risks read Genetic Roulette: The Health Risks of Genetically Engineered Foods