I love this mat!  We've had a problem in our upstairs bathroom, which has no vent/fan to dissipate the moisture, with mold issues.  Any poly or other material of bathmat that I put in the tub ends up covered with black mold on the bottom.  This has been awesome; I put it in the bottom of the tub and it doesn't slip (rubber pads on the bottom), and it's wonderful under my feet.  Then I hang it on the side of the tub to 'drip dry' after my shower.  The next day I put it back in the bottom of the tub.  I haven't had black mold in the tub since I began using this!  It's been great.  I would highly recommend it for either in front of a sink, or as a bathmat inside or outside of the tub.  Great product!  I'm also purchasing the larger one.