You can turn on a filter that will block pornographic results. You can also search within a specific Web site, and do much more. Google doesn't cover the whole Web. No search engine does. And it's wicked fast.
Results seem to appear almost instantly.
Finally, Google is honest. It doesn't sell companies the right to have their Web sites listed higher in its results than its normal ranking system would allow. Google does sell two-line text ads that appear at the top of the screen and are based on the search term entered. Google also sells another type of ad that is linked to search terms, but it's even more distinct from search results, appearing as a colored text box off to the side of the page. I know that people have other favorite search sites, and whatever works for them is fine.