When is your assessment Zouzi? I'm currently waiting for a start date with them after my course got cancelled last year when the economical isht started hitting the fan. Can't help but feel that it's good news if they are starting recruitment again!
About the assessment, don't listen to all the negativity out there, just go and give it your best shot. Before I went, I also heard that it was near impossible to get through, but hey, I got in. Everyone says that they only take about 5 out of every 30 or so, and it's true, but why can't you be one of those 5..? A question of seeing the glass half full rather than half empty...
Best of luck, enjoy Innsbruck. Cheers!