In some contexts, attention paid to design details means the difference between delighting your users or not. In other contexts, insufficient attention paid to design details can impact conversion, adoption, engagement, and user trust.

Design details include not only how things look but also how they work, their ability to satisfy one’s needs, and the emotions one feels from interacting with them. To create a great experience for users requires tremendous empathy for others, an understanding of their needs and motivations. Irene Au.