Overall, I am very pleased with the product and the prompt, efficient service provided by Wayfair.  However, I have not purchased this item separately before, as they usually are included with the faucets, so I may not be  realistic in my opinions regarding the pricing of this item.
 I was shocked that the cost of the valve was about 1/2 that of the faucet!
 Also, had I been told that the faucet I chose did NOT include this valve,I most likely would have chosen a  different  faucet.