There are a lot of good things about this rug.  I love the color.  It's definitely grey with blue undertones.  I noticed some people complained it's blue.  It isn't but in some lights the undertones are more apparent. Buy it if you're looking for a cool grey rug with blue/purple undertones. I like the variations in the color - it's not solid grey.  It's more a heathered gray.  The quality seems good.  My big complaint though is this rug is NOT a .63 pile height.  It's maybe .4 pile height and that's being generous.  It is a thin rug that requires a rug pad (possibly an extra thick rug pad).  I would not have ordered this rug if I knew it was so thin.  I'm keeping it though because I like all the other qualities and I don't want to deal with the hassle of returning it.

Pros: color, quality, price
Cons: It is not a .63 pile - very thin rug, requires rug pad