I needed the extension kit after the countertop was replaced with a thicker one. It worked great and the faucet was installed easily.
THe extension worked fine. BUT...why isn't an extension included in the original package? And is it really worth over $24?
At least you could include an option for getting the extension when the dishmaster is ordered, so that a separate mailing can be avoided.
I have used a Dishmaster since I was a child. Love the product and they have great customer service. We just put in a new granite composite sink and no new big expensive faucet for me. My DishMaster is sitting pretty.