Salafism / Wahhabism

What do you know about this group & what are your thoughts?

The Prophet (peace and blessings of Allaah be upon him) also described them in the following terms: “My ummah will split into seventy-three sects, all of whom will be in Hell except one group.” They said: Who are they, O Messenger of Allaah? He said: “(Those who follow) that which I and my companions follow.” This is mentioned in the hadeeth of ‘Abd-Allaah ibn ‘Amr which was recorded and classed as hasan by al-Tirmidhi (2641). It was also classed as hasan by al-‘Iraaqi in Ahkaam al-Qur’aan (3/432), al-‘Iraaqi in Takhreej al-Ihya’ (3/284) and al-Albaani in Saheeh al-Tirmidhi.