Netflix (Android TV) is the Netflix version for TVs with an Android operating system installed. That means that this version will not work properly on mobile devices or tablets. Meaning you're going to need another version if that's what you're dealing with.
Just like with any other Netflix app, in order to use this app you're going to need a real Netflix user account. Once you log in onto your account, you can start watching all the TV shows, movies and documentaries that you want. You can also pick which language you want to watch in and adjust subtitles or audio to any of the languages available on Netflix.
Netflix (Android TV) is an essential app for any user with an Android TV if what you want is to enjoy your Netflix subscription to the max. Thanks to this app you'll get to enjoy hours of the best series including the latest new TV shows and exclusive movies that are only on Netflix.