I investigated certs before purchasing and they are legit. The purple is awesome; my husband's favorite color. Quality appears good, feel is sateen. The smell was awful. CS made some suggestions and I followed; there was improvement (also offered refund). But I continue to air. Not sure if we will use or not. I hope they will investigate cause and improve because I really like the company's values. Heaps of potential at an affordable price. If you are not sensitive, buy them.
I was trying to duplicate my favorite sheets ever than no longer are available in dark purple. I can’t say how durable they will be after only two months, but they are very lightweight, which may or may not have an effect on durability. They are not quite as silky as my other sheets, but they get softer with each wash, and they fit the mattress very smoothly without bunching up. I really like that.