Product review (5 stars): Replace both hot and cold very easy.
I replaced the cold dispensing valve because when my machine reached the rinse cycle it just kept on doing an endless rinse. Even when I shut the machine off the valve didn't shut the flow of water off. So thought I might as well change both. I changed both as I was already in there and the part was inexpensive.  Took me about 15 minutes very easy, the biggest problem I had was sliding the lid back.