Product review (4 stars): Great value, good quality, one caveat...
Great replacement for the original Oatey 38822 dual shutoff valve that had been in place for over 20 years, with one caveat: the o-rings provided with this valve were too thin to make a leak-proof seal between the top of the new valve and the original Oatey bottom bases that were connected to the water supply. So the solution as another reviewer pointed out was to replace the o-rings with thicker ones available from Home Depot. Specifically, you'll need Danco #11 o-rings (3/4" O.D. x 9/16" I.D. x 3/32" thickness). They come in a box of 10 for less than $3. (Note that Danco #11 is NOT the same as #11 in other industry standards.)

So all in all, a great value for the money.