after one use anywhere cracks ...

I had let myself carried away due to the many positive reviews and the low price to buy these sports mat - a big mistake, as it turned out. On the mat, I'm easy Gymnasikübungen with sports shoes and not bounce like other large purchasers it around. Nevertheless, even after the first use were several cracks and Aufreibungen on the mat. After one week, the mat looks, as if I had already 1 year in the use. In addition, it is very soft and smells chemically fishy. It's really unpleasant to come with his face close to the mat. In the future, I give rather more money on something higher quality ...