The mat smells actually start somewhat plastic, but this is already gone after the first bathing use. We use the mat now several months on a regular basis and may not notice any quality defects. So no discoloration or cracks or the like.
Of course you should take as a mat for the bath and out of the tub and let it dry.
The small water injection animals are a nice little bonus, and also function as they should.
We have no complaints with the mat and therefore give 5 stars, just as well because of the price.