I took it in January and passed. I used the STC manual. It was not complete since it was an older version and had none of the SuperMontage stuff, but there were only 2 or 3 questions about that anyway. I didn't say it was easy, just not too bad if you have a study guide. There are definitely some obscure questions you would never think in a million years to study for, but that is why they don't require you to score 100. I read through the manual for about 2 weeks and spent the last few days doing practice tests. Certainly if you have experience with Nasdaq trading and order routing you will have an advantage. If you are new to the market, allow more time for it.