I feel Facebook is one of the best social networking sites available in the present day it allows you to connect with the world and also chat and do video call to your friends very easily very fastly this has all the features quick messenger and the app is also really nice built no crashes no lags at all and it works like a charm I have been using it from a long time and I would say then everyone should use it Facebook as it is one of the easiest ways with which one can connect with the world. And also it does not require any mobile number to connect with your friends you could just their name and find their ID.