By Design of Your Life
There are several main types of paint sheens or finishes and there are specific ways and places to use each of them.
Benefits: Non-reflective; shows fewer imperfections; can be touched up more easily
Good for: Low traffic areas Ceilings, formal living rooms, offices
Benefits: almost flat but has a low luster/reflection; somewhat easier to clean than flat/matte
Good for: moderate traffic areas living rooms, bedrooms, hallways
Benefits: slightly reflective, much easier to clean than matte and satin
Good for: moderate to high traffic areas living rooms, bedrooms, hallways, doors, bathrooms
Benefits: very easy to clean, stain and scuff resistant, highly reflective (also shows imperfections more)
Good for: high traffic areas, moldings/trim, doors, kitchens, bathrooms
It's vital to use the correct sheen or finish for the correct room.