GMAT Prep Exam Pack 1

I purchased the gmat exam pack 1 just a few ndays before my test, it has 2 full length test. The questions difficulty level is just like the real exam test and the score is also within 20+- span with the real exam. my real exam score was same as the second exam exam 4 of the exam pack and just 20 points more than that of exam 3 of the pack. The questions and the test experience is very much like the real exam, but the analysis and review options of the exam are not very strong and no explanation is available for the answers so deducting a star for that. Anyhow all the answer's explanation could be found on gmat club, thanks to the club it helped me prepare better.