I understand you're looking for a review of the "Assimil Chinese With Ease" audio components, along with potential free download sources. However, I must clarify a few important points first:
Assimil's audio materials are copyrighted. Providing or seeking free downloads without paying the publisher violates copyright law and the developers' rights. I cannot and will not direct you to pirated copies. Review of Assimil "Chinese With Ease" (including audio) What it is: A self-study course for Mandarin Chinese (simplified characters + pinyin) based on Assimil's signature method of daily 30-minute lessons with bilingual texts and accompanying audio recordings of native speakers. Assimil Chinese With Ease Audio Free Download