I haven't personally seen this mat, but I am told by my vacation home neighbor, who received it for me and is very particular, that it is really nice.  He is comparing it to mats available at big box hardware stores; I am guessing that the size and thickness contribute toward his approval.  I also noticed in the reviews and/or product description, that this mat is able to be used with BBQs using charcoal.  Nowhere else have I seen any reference to "charcoal-friendly" mats, but since this is what the BBQ used on which this mat will be placed, I am glad to know it.  Guessing it might have something to so with a hot coal dropping onto the mat, but being ignorant of the BBQ world, I really don't know.  Another reason I like Wayfair:  the reviews and product information.