Having a fresh coat on the walls of your home is unanimously the fastest way to making things look brand new. That's important if you are wanting a general update to feel better about the appearance of things and VERY important if you're considering selling.
Today's paints are low odor (low VOC) and very durable for easy cleanup when raising children or including animals in your household. They also last longer than traditional paints so you are able to keep the value longer for this home improvement.