These are great sheets.  I have had terrible experiences with microfiber and polyester sheets in the past, so I was especially interested in these 100% cotton sheets.  They are breathable, keeping me warm at night without making me sweat.  I also feel really comfy at night when sleeping on these sheets--they are quite soft and comfy.  

As for the construction of the sheets, I saw no loose threads or flaws.  I also love the deep pockets of the fitted sheet; it covered my whole mattress which is usually an issue for me.  This set includes it all: a fitted sheet, a flat sheet, and two pillow cases.  These are a true, paper white, and they easily wash with other whites in the washing machine.  My only complaint was a slight plastic-y smell when they came out of the package, but that came out in the wash.  Overall, I am impressed with this set and would highly reccommend.