I'm sure many readers of Maximum PC--this one included--have jumped onboard the Google DNS ship, lured either by promises of increased speed versus one's own DNS server or a simple fascination at anything Google does. Fair, at least with the latter. Because it would be erroneous to just switch over to an alternate DNS server without any kind of assessment that what you're doing is actually the best-case scenario for your home or office setup.
That said, it's important to first give props to Google for delivering a DNS service that appears to be free of any kind of takeovers or unexpected redirects. Just try hand-pounding your keyboard after clicking on your browser's address board, then hit enter. If the resulting "fasdfljsajdf.com" isn't actually a Web site, you'll notice how... nothing happens, save for the standard "what are you doing?" error page (depending on your browser of choice). That's a bit different than OpenDNS, which routes you over to one of its own landing pages--oddly, a rebranded version of Yahoo! search--that's stacked with advertising related to whatever it is you mistyped. Weak.
Redirects aside, it's important to know exactly what you're getting into when you start fussing around with going a step beyond your ISP's default DNS servers. Like a tangible product review, you should really assess what you're gaining and losing through the use of either OpenDNS or Google DNS from both a performance and features standpoint.
After the jump, I'll share my own personal results with using both Google DNS and OpenDNS, and show you exactly how you can figure out the best-case scenario for your own browsing needs!