After the study of Rita Mulcahy's PMP Exam Prep I got the recommendation to learn with the PMP Exam Simulator.
Thanks to it I passed the PMP exam at the first trial. The questions and especially the detailed descriptions were extremely helpful to better understand the way of wording in the exam. The statistics make it very easy to keep track of which topics you need to study in more depth and how you are improving.
Additionally I used the PMI Study Hall (some call it Study Hell

) and I think it was also helpful, because the wording of the exam questions is really comparable with the real exam.
In total, I answered more than 3000 exam questions (also from other sources) and learned from my mistakes, but it was worth it.
I passed the exam the first time with a rating of "above target".
Thank you very much!!