Good

Do take these tests before your actual certification these are very helpful. 
I scored 81% in my actual certification and most of the credit goes to these online tests here. 
The questions in the actual test are very similar to the ones you will see in these premium exams. To all the test takers once you have enrolled this test keep taking this test until you score 100% here and you will definitely score more than 80% in your actual certification, This is my personal experience.
ALL THE BEST!!!