This is a lovely rug for the price.  The colors tend towards charcoal gray in certain lights, and the heather grey tones were a match for what I needed in my room, but look like the blue described when the light is bright.  I have a west-facing room, so I see more blue in the afternoons than in the mornings.

This is not a thick rug so I recommend a rug pad to add some cushion and keep the rug from sliding.  I purchased the 9x12, but it is not heavy so having a rug pad seems to help keep it in place.  It cleaned up well after we've already had some spills and a cat who threw up breakfast.

I believe someone else noted that the rug can look dirty when the fibers in sections are rubbed in a different direction, and I tend to agree.  The gray undertones show as dusty dirt when brushed in certain directions, so this may bother some.  I just grab my stick vac and give a quick vacuum to push the tufts in the other direction.