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Title: Buyer beware!
Review: I bought all three levels in a one-pack. On closer examination it became clear to me that the books had tone-mark mistakes on every page, plus Taiwanese characters understood by a mere 23 million as opposed to 1.4billion Chinese on the mainland had been used throughout. The company said it was aware of the problem and would put it right. A year or so later I received a replacement product. Unfortunately it was the wrong product. Incar learning or something. Vocabulearn, I was informed would not be changed.They are aware it's very poor quality but continue to put it out. Draw your own conclusions.
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