Pretty and good quality. Sheddim only noted when vacuuming

It’s a nice thick rug so quality seems good. It has a few brown spots worked into the blue and I’m not crazy about the brown. They looks more like a stain than part of the rug since it only happens a couple of times. Told myself I can live with it, but it’s starting to drive me crazy. I’m starting to wonder if it’s supposed to come like this or if it’s a defect.