This is a great opportunity for young graduates. I was preselected for this programme, but eventually got another job. Just out of curiosity I went for the interview and was really impressed by the institution and the conditions. It is a 3 year program with real chances of prolonging it into a job (which is not the case with the European Commission traineeships).
I see that the fields this year are more scientific, however they are different every year. I was preselected with a political science and languages background, so it is also possible.