First off, CrunchyRoll has SO MANY anime options, ranging from super popular to hardly known. With the hundreds maybe even thousands of anime options, you will never get bored of it.
Secondly, people always complain about the plethora of Ads, but that is only in the free version. CrunchyRoll has lots of good premium options with the lowest, and still best being only $7.99 a month! Plus every option has a free 2 week trial to see if you will like it.
Additionaly, the quality is quite amazing, and is prioritized. But most of all, the site has over 12 different dubbed languages for some shows, and also hidden, new episodes or season that you wouldn't find on other streaming services such as Netflix, Hulu, ect. To top it all off, new episodes on shows are uploaded only 1 hour from the release date in Japan.
In conclusion if you are looking for a cheap, fun way to watch all your favorite anime's, CruchyRoll is a great option.