I just wanted to say that I have bought hundreds of PG tests off Ebay and some work just as well as the name brands or better. As with any product, you are going to find some that are low-quality and some that are excellent. Just because one brand malfunctions doesn't mean you should dismiss all the good deals here on Ebay. I know people who have spent $100.00 a month on tests at the store, when I don't spend that in a year b/c I use Ebay.