This paper proposes a model of User Experience through user-product interaction based on various theories from cognitive science - like Uexkuell's Wirkkreis, design research - like Emotional Design theory, and Human-Computer Interaction - like the Process Schema. In the model appear sensor, cognition and affect, and response dimensions of the user, sensor and responses of the product, as well as the use context and the time dimensions. Together they build the User Experience. This brings new paradigms to product design. The classical form-giving has to evolve towards a holistic view on experience dimensions including changes of functionalities, appearance, behaviour and sensorial properties. Designers' awareness also needs to be directed to the anticipation of use scenarios and to potential shifts in user experiences over time.