user experience
noun /ˌjuːzər ɪkˈspɪəriəns/
  /ˌjuːzər ɪkˈspɪriəns/
(abbreviation UX)
 (computing)- what it is like for somebody to use a particular product such as a website, for example how easy or pleasant it is to use
- They seek to continuously improve the user experience of the games.