Pro:  I was very worried when I bought these sheets because they were so inexpensive!  I was afraid I was buying "cheap" sheets as well!  They have turned out to be the most comfortable bed linens which I own, and I have bought PLENTY of sheet sets!  They are 400-thread count which I though meant they would be scratchy and uncomfortable.  (How dumb for an accomplished handweaver).  They are very soft and feathery-feeling.  I feel like I'm sleeping so more comfortably and loved them so much I bought another set two-weeks later.  I put all the 'expensive' and 'good' sheets (I thought) I owned in the closet and don't know if I will ever use them again.
Be careful of the price changes!  This is one product in which the manufacturer can change the price on Wayfair without notice.  I LOVE Wayfair because they gave me  credit for the difference when the price went back down the following week!
Cons: none.