Packaged good product unfavorably

Positives:
+ Good sliding properties (and in a two-year worn on a hard plastic mouse pad)
+ Mat is absolutely non-slip
+ Processing with no obvious flaws
+ Pleasant large working area
+ Reasonable price

Negatives:
- Several light (but persistent) waves over the pad because it has cross-adapted to the corners of the package in a rolled state (fortunately rather an optical flaw as an impairment in the use)

My Pad had no unpleasant odor (as described by some).

The waves after a short time to disappear, as described by other reviewers, does not coincide with my experience. Are after two months still exist.

[Update: In the meantime, the waves are completely gone. It took some time for half a year with me.]