Hanafi Fiqh

Are Salafi dividing ummah or praising themself ?

I have come to know a person who follows the Salafi da’wah and I have read a book about this movement. I’m really confused and head some questions. Is Salafi da’wah correct and that those who follow it have the sound ‘aqeedah belief’ How correct is it from an Islamic point of view to use the word “Salafi” and to describe oneself in this way? If a person says that he is a Salafi, is he praising himself? Is this considered to be dividing the ummah?