Well, i passed with 309 (required 300) to pass.
I feel like i could have gotten a way better score as many questions where outright badly written (and WAY to much text)
Also, after 2 hours, i only had 30 questions answered and started to panic. Started skipping some questions (i would say i skipped at least 10 questions in all) as i really though i would run out of time. At that point i really thought that i had failed the exam. I finished with 8 mins left and was mentally tired.
IMHO, the exam is too long and there is way to much reading to be done. Hard to concentrate for that long.
Content wise, i basically followed the recommended blueprints and my design and implementation experience covered the rest (one of my collegues did the Design Workshop at PEX 2012 and i borrowed the training materiel).
I guess real life experience with the products and actual design implementations make it easier.
Marc