Product review (4 stars): Good product for the price.
Works as expected.  I've just purchased one for the second time because the first one finally started to come apart.  The sliding piece fell off, but it lasted a for years.  Well worth the money and they last a long time for something so cheap.  You should expect something with moving parts (and exposed so often to steam) to start to fail at some point.  Nevertheless, I am pleased with how many years it lasted (I'm guessing 4-5 years).