Hi, there is a lot of competition for ODP. For example, when I went to interview we were told there were well over 60 applicants, both UCAS and direct, for 20 or less places. The amount of places is usually around 20 but if there are people being seconded then those places are limited even further. As long as everything is prepared for the interview then it should go pretty well.
I start in two weeks and can't wait!