This is like most other handheld vacuum cleaners. It picks up dirt but not the tiny little crumbs unless you go over the same spot a couple times. To use the highest setting which works best the battery is dead within 15 minutes. It's not possible to clean your whole car in the amount of time. If you keep your car immaculate and vacuum every 2 days, this is perfect. The area that holds the drt looks pretty small, but surprisingly, it holds quite a bit and is easy to clean. It's great for getting pet hair off my furniture and is the best feature.