I have tried a few searches, and I met with pretty good luck most of the time. A few searches did not pan out, but maybe I was entering things incorrectly (for example "Vitamin K2" with the quotes returned nothing). A few times, after entering a search target that did not pan out, I had to quit and restart the app to do another search. So, I did not rate very high on stability. On the plus side, I found that double clicking on a highlighted item opened the associated web page. Nice feature. Wish there were documentation, and perhaps some error messages to assist when one enters something unacceptable. Other than those few quibbles, this is a very useful tool, and thanks to the author!