Some prefrences such as drugs, marijuana, and children are locked behind the premium. This wouldn't be bad if the app didn't randomly decide you'd be a good match with one of these and you don't want that. Furthermore, premium is NOT worth it at all. The only perks in addition to adding more prefrences is "infinite" likes. But even then at some point the app will lie and tell you have seen everyone, even though the next day it will show you more