My personal experience during the Stage 1 interview -
Technical exam - It was a breeze.
Abstract Reasoning - Put me to the test and I screwed it up towards the end.
Technical and HR interview - I think I did pretty well.
Result : I cleared Stage 1.
I'm sure you'll get through. I went to the interview with just 260 hours. If you've never undergone IFR training, that particular ILS numerical (if you received the same booklet as I did) would certainly put you in a pickle. I can't recall any questions from the ATPL category.
Hang in there and be confident. Good luck buddy.