I passed the exam in Rome on last 26th June. I find the prepcast video lessons, the simulators and all the material suggested by Cornelius Fichtner in the website of vital importance to pass the exam at first attempt.
The exam was not easy but the simulators has the same level of difficulty you will find at the exam, therefore you will likely perform at the real exam in accordance to the simulators results.
Furthermore the videolessons contain important concepts to pass the exam so I recommend to listen to them carefully.
Regards
Matteo Marcelli