I could honestly not be happier with this rug.  It fits our space perfectly, and is a great match for our new fireplace.  The colour is true to the description - grey/silver, but with nice natural patterns and silver flecks.  It does require a pad underneath if putting on a hard floor (it will be slippery and slide around).   I actually taped mine down with two-sided tape so the Roomba wouldn't catch the edges (it works).  The new favourite spot for the dog and cat!