My 1 year old Akita/Lab mix destroyed 4 door mats and I was looking for something that would survive his thoughts of this just being another toy at his disposal.  I found it!  This door mat cost way more than I would normally spend on a door mat, but it is well worth the money.  After 2 weeks it's still in one piece!  The mat is solidly constructed and very heavy.  The bristles are great for getting dirt off of shoes.  I'll be buying a  second one for another door.