I passed my test and the ERPPrep.com was great. Scored 96%.
After going through the SAP Design Thinking test i am confident i can pass any test in Future. We need to practise for 30 days each day 30 minutes to pass a test. Don't practise for 2 months as after a few weeks u get bored and best time to give test is within 30 days.
All the best to all.