I haven't washed it yet - and with cotton that can make a difference.  I was worried about the low thread count - and because of sizing added during the dye process, low thread count might be apparent after washing.  What did impress me was - early delivery and it came out of the package looking very nice and it fits my down filled well.  I like the look on my bed.   I like the colors of blue in it.  
If I had my druthers I'd prefer zipper to button closure on the duvet.  I'd prefer back closure (with some overlap of fabric) on the shams.  Side closure makes them reversible but my King pillows are slightly visible at the gap.