I attended an assessment day at Hitachi's Maidenhead office. The day consisted of a mixture of group and individual tasks and an individual, there were also multiple opportunities to talk to staff and current interns. It was a good experience, the staff were all kind and happy to help out. The only negative was that after the day I was offered a further skype interview and organised for this to take place the following week, however, they then cancelled this a day or two later as they did not want to wait to choose a candidate.