It sure was a bit trickier than I expected initially and I have already suggested to some of my colleagues that they check up on some aspects they do not use regularly.
All in all I have to say it was kind of familiar to the SCJP / OCJP (Sun / Oracle Certified Java Programmer) tests, meaning it is a cross-section of Alfresco that Alfresco thinks reflects basic know-how, when in reality things might be different. As a partner, I would have liked to have less "What feature does Alfresco provide by default"-type questions or "Where in the UI is button X" (just my categorization and a dramatization, not an actual question), and more "What elements in the Alfresco architecture provide feature X" or "How can you react to content event Y". And some aspects that are essential for professional Alfresco development were simply missing.
I am looking forward to the completion of the first round of tests and the gathering of feedback. Additionally I am hoping the certification scheduled for this summer will be more what I expect from professionally relevant certification, considering Alfresco announced different specializations "just like" the higher-tier Java certifications.