Aesthetic-Usability Effect

Users spend most of their time on other sites. This means that users prefer your site to work the same way as all the other sites they already know.

People judge an experience largely based on how they felt at its peak and at its end, rather than the total sum or average of every moment of the experience.

The mental state in which a person performing some activity is fully immersed in a feeling of energized focus, full involvement, and enjoyment in the process of the activity.