A quick detailer can be useful for several reasons:

Maintenance: Quick detailers can be used to maintain the appearance of a vehicle between washes, helping to remove dust, fingerprints, and other light contaminants from the paint surface.
Protection: Many quick detailers contain protective ingredients that help to protect the paint surface from harmful environmental elements like UV rays, water spots, and bird droppings.
Enhanced Shine: Quick detailers can be used to enhance the shine and gloss of a vehicle's paint, making it look freshly washed even if it hasn't been.
Convenience: Quick detailers are designed to be quick and easy to use, making them a convenient option for those who want to keep their vehicle looking its best with minimal effort.
Versatility: Quick detailers can be used on a variety of surfaces, including paint, plastic, glass, and chrome, making them a versatile tool for maintaining the overall appearance of a vehicle.

Overall, using a quick detailer can be an effective way to maintain the appearance of a vehicle and keep it looking its best.