We have one dog, a Dobie. We have some carpet but mostly hardwood floors. The headlight just shows you what the vacuum is not picking up! The 'brushes' don't touch the floor to gather up dirt/debris, it just gets scattered around! This is by far, the worst vacuum I have ever purchased! The entire thing needs to be redesigned to lower the brush head so that it will work. And get rid of the light--especially if the vacuum isn't going to pick up the dirt and pet hair-no one wants to see what it leaves behind.