Product review (5 stars): water line replacement valve was perfect!
While it took a little time to research the correct valve to repair the refrigerator, this one was perfect.  Thanks to the abundance of youtube videos on how to repair/replace this part, the process was easy.  Even with getting the 'next day" shipping, the price was still far lower that then local parts stores (by more than half).

Hopefully, I won't have to do this again (when the valve failed it was a huge watery mess), but if I do, I know exactly how to get a replacement part, and who to get it from!