How well does it work? Well, it was able to find quickly how many calories are in a serving of cocoa puffs, what day of the week I was born on, and PC World's circulation. Entering "Star Trek" automatically pulled up the J.J. Abrams film and told me it was released 0.022 years ago.
Besides providing information on search terms, Wolfram does a great job at conversions and answering equations. I was able to convert the value of my pocket change from dollars to yen and figured out what a 20 percent tip would be for a $25.86 meal and how to break that tip up into currency.
At the bottom of the page you can take a look at the sources Wolfram has drawn from to answer questions about your topic, or save your results as a PDF. The PDF is basically a reproduction of the Web site; it would be nice if it was reworked in the future to be more printer-friendly.
I was quickly impressed with the site's capability to return relevant information about my search terms just as fast as Google would refer me to . I couldn't help but try to push Wolfram to its limits.
Working Wolfram