User Experience Over Time: Part 1

What makes a product good or beautiful? How does user experience change over time? These are some of the most often asked questions by UX researchers trying to measure user experience. To answer these questions authors of User experience over time article carry out a research on how people form evaluative judgements during their first encounters with a product and then after 4 weeks of using it. They claim that the way we experience and evaluate products changes over time.