<p>We had painters use Dunn Edwards without properly preparing surface on several rooms in my house. Long story short - new drywall, not properly spackled and sanded first, leaving gouges and scratches. Then they used a brush without feathering it. Touching up the messed up spots is impossible. I am not sure it is the paint - it may have been the prep. I was told it is impossible to touch up spots perfectly even using the same paint unless the whole wall is sprayed again. That seems crazy.</p>