Product review (4 stars): So-so quality, but works great!
I paid $21 for this including shipping and it worked like a champ.  I bought a used, 11-year old Bosch dishwasher off Craigslist and when I hooked it up, the tub wouldn't stop filling with water.  Sure enough, the valve was corroded with hard water accumulations and it was stuck in the open position.  This replacement did the trick and took no time to install, and I would have given it 5 stars except for one thing... after installation the valve wouldn't open.  I was pretty frustrated and figured they sent a dud (I tested the wiring with a Flukemeter to make sure the electronics were working so I knew it was a mechanical problem).  It turns out that the solenoid portion (the greenish part on the top) wasn't seated fully.  I was able to push it on (about 1/8th of an inch) and it worked fine after that.  So it's probably not the highest quality, but it's a perfect fit and it'll probably outlast the rest of the dishwasher.