If you don't use Google Search already, here are a few reasons why you should… and, of course, a few things to watch out for.
Save your money when searching — Google Search is free to use. You don't have to pay any money to search for stuff on it.
Let me guess — As you type in your search terms, Google Search will make suggestions as to what you might be looking for, and update your results accordingly. This can mean that you get where you want to go on the Internet a bit faster.
Broaden your horizons — Besides web pages, you can search for many other types of things on Google Search, including images, videos, locations on a map, even something out of a book or news story. Google Search makes it easy to filter your search results by these categories.
Narrow it down — Advanced options let you change your search results based on where you live, when web pages were created or last updated, if you are looking for a specific word or phrase, and more.
If it can't be found here, it (probably) can't be found anywhere — Google Search has one of the largest database of Internet content out of all the search engines out there. So if something's on the Internet, chances are that Google Search knows it's there and where you can get to it.
I was looking for that, too! — Generally, the way Google Search works strikes one of the best balances of relevance versus popularity in search results, when compared to other search engines. Basically, this means that, unless you're searching for something really obscure, it will be near the top of your results on Google Search not only because it matches what you're looking for, but a lot of other people have been looking for it, too.
I didn't search for ads! — Since Google Search is free to use, you're probably going to see advertisements whenever you run a search with it. Some people say that they aren't as intrusive as they used to be, or as intrusive as those of Google's competitors, but they're still kind of annoying. Ignore them as best as you can.
Being different is difficult — Though how Google Search specifically works is a closely-guarded secret, in general, the results you get are affected by both their relevance AND their popularity. This means that you sometimes have to be specific when you're looking for a website that isn't quite as popular, or else it won't be one of the first results you get on Google Search.
The Bottom Line: 9/10
Though it has seen its share of rivals rise over the years (including Yahoo Search, Bing, and other international derivatives), Google Search is still the most widely-used Internet search engine on the planet. And there's a reason for that: Google remembers that its search engine is where it all started, and it remains the core of their business. This means that Google not only continues to tinker with Google Search and improve it, but also makes sure that most of its other services work in unison with Google Search and follow the same user-friendly aesthetic.
Google Search isn't perfect, though. Because Google Search factors both relevance and popularity into what search results it gives you, and since nobody except Google knows exactly how "relevance" is determined, it sometimes takes a bit of work to find exactly what you're looking for. This is especially true if your target isn't that popular and/or other websites with similar terms or focuses have rigged their content in order to be more visible to Google Search than your target. Overall, though, Google Search is still at the top of its class in terms of delivering consistently relevant search results.