I sat for the exam a few weeks ago. In my experience, troubleshooting and understanding feature behavior were more important than simply memorizing configuration options.
Expect questions involving policy evaluation, traffic flow analysis, VPN deployments, authentication methods, and diagnosing network security issues. Being able to understand why something works or fails is very important.
Regarding Study4Exam, I included their practice questions in my study plan after seeing recommendations from other candidates. They were useful for testing my knowledge and highlighting topics that needed additional review. I especially liked using them as a final check before the actual exam.
If I were preparing again, I would spend less time memorizing commands and more time understanding real deployment and troubleshooting scenarios.