As expected of a plastic mattress protector it definitely has an odor right out of the package. It seems to air out quickly though. Fits the Twin size bed well. We also received a King Size one for our bed which didn't fit as nicely - too much extra at the edges. The Twin was more important for our son though so we give it 4 stars!

Pros: Inexpensive, Convenient, Easy to put on
Cons: Smell, Sizing Issues