Interview is 2 days:
Day 1 starts with a couple of classroom tests (after introduction), consisting of a math test, pesonality questionaire, verbal reasoning. Afterward you either have in interview with an aviation psychologist or the simulator grading.
Day 2 if either the interview or the simulator.
The sim is done at Air-Lingus training center on a 737-200. They check your general handling and IR skills. I can't remember the exact details, but you will get a good pre-briefing. You will fly as crew with another trainee, and they will also be looking for your pnf skills.
We flew from MAN.
The interview you will be asked to tell you live story. The psych will ask you to get in some sort of relaxing dialog.
I can recommend Parc. I followed their course, and it is very professional. The training aids are very good, the instructors are the best!
When will you be doing the assessment? Good luck anyway!
Yours,
H