I passed PMI-ACP first try with above target score for all domains. Below is how I prepared for the exam:
1. Completed all material on The Agile PrepCast & PMI-ACP Exam Simulator (90-Day Access) Bundle, but save some tests to the end of the process
2. Completed material on "Management Plaza"
3. Passed PSM exam on Scrum.org as suggested by Fichtner
4. Practiced more on pmtraining.com
5. Completed book "PMI-ACP Exam Prep, Second Edition" and "PMI-ACP Workbook" by Mike Griffiths
6. Completed all remaining tests from "he Agile PrepCast & PMI-ACP Exam Simulator", especially focused on the domains with low score
7. Take couple days off before the exam and pass
I found it is helpful for me when reading materials from different resources, which helps me understand better from different background and scenario.
Hope my experience is useful to your study, and good luck to your exam.