The mat is a good size (68" long and 24" wide) and has no unpleasant scent. I did not have to air it out before using. The mat provides good cushioning and give good protection to my knees for poses that require me to stand on my knees.
I use it on hardwood floor and it does not slide at all. In attached video you can see me trying to move it my moving my foot - I am not able to do it.
You can find it on Amazon by following this link.
Ali Julia review ★★★★★