I just got back from Seoul last week after interviewing for the A330 FO position. Still waiting to hear the results. I went through CCL for the agency, Cambridge Communications Limited. The support that I got from them made the whole process easier. They are very quick to respond to emails and answer any questions that you have. Meeting with other interviewees it seemed like there was varying levels of preparation and support depending on the agency. Some weren't told where to catch the shuttle bus to the hotel, or provided approach plates for the sim ride to study ahead of time. Nothing really major but for an interview the easier the better. Overall the whole process was very straight forward and I am hoping to get the call soon.