More and more companies are adding emotional features into the development process of their financial offer, developing new products and services based on the emotional motivations of users. However, the subjectivity of the experience and the complexity of its variables has become one of the biggest challenges for businesses today. In recent years many tools have been created in order to explore the user's emotional perception, but there are still shortcomings. Experience design professionals have pointed out the need for further assessment work and in this paper the biometric-based multimethod tools are reviewed. Within this type, one of the most focused experience evaluation tool is analyzed: the Eyeface. A tool that consists of two devices, the Eye-tracking and Facereader. The research work concludes that the biometric-based multimethod tools will be the key element to face the ultimate integration of the emotional approach into the business world in the near future.