This was definitely a tough test. I listened to all the PrepCast videos, read the entire PMBOK through once, and took all 9 of the available test simulations, in addition to one or two others from other websites. I took the test almost exactly 2 months from the time I ordered the material and first downloaded the PMBOK guide.
During the test, I answered 50 questions, marking the ones I was unsure of. I would then go back over those questions within that group of 50 and see if they were more clear. If not, I left them marked. I did the entire 200 question test like this. Once I got to the end, I had about 20-25 questions still marked, and I was at the 3:00 mark. I took a 10 minute break, then went back through and took my best shot at the remaining marked questions. I had to totally guess at about 5 of them, and ended the test with 20 minutes remaining on the clock.
I can honestly say that when I hit the "end exam" button, I had no idea whether I had passed or not...the questions were that vague to me. But the final screen (in the attachment if you can see it) had some good news !