The Adobe Likability Factor Questionnaire (ALFQ) is a metric used in QuestionPro UX to gauge the emotional appeal and "likability" of a product or interface. Unlike functional metrics, the ALFQ focuses on how much a user enjoys the experience and their emotional connection to the design.
A product can be functional but still fail if users find it cold or frustrating. By including ALFQ in your research, you can quantify the "delight" factor of your UI, helping you balance efficiency with aesthetic and emotional satisfaction.