Well thanks for all the responses ladies and germs...
If I could have back my original post back for a moment...
I went to the interview that morning and it went very well. I can confirm there is a ATP type test. No sim. However, there is a 'cognitive skils test'; I didn't like it much. Especially since I got about an hour sleep. ...there had been a disturbing audiable rythmic drone coming from somewhere in the hotel that kept me up for almost the entire night.
Anyway, I got the job offer the same day of the interview, before I even left the building. It was again confirmed by another phone call from their HR department by phone on the way home.
All the interviewees, (well, I can certainly say I was anyway, but pretty sure my fellow interviewees were too), were treated with respect and it was a classy operation.
Got offered choice of base and choice of start date.
Thanks to all who offered their well wishes.