ONLINE RxPrep Quizzes

There have been a few posts about this in the past, but none since the updated version of the NAPLEX. How relevant do you think the online RxPrep quizzes are? The book questions are SIGNIFICANTLY easier, but the online questions are hard (for me at least). I keep scoring around 55-65%. Have you guys had a similar experience? Do you think these online questions are an accurate representation of how the NAPLEX will be? Thank you for any wise words/input you guys have.
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums