  This paper reports a case study on the User Experience (UX)of an industrial
robotic prototype in the context of human-robot cooperation in an automotive
assembly line. The goal was to find out what kinds of suggestions the assembly
line workers, who actually use the new robotic system, propose in order to
improve the human-robot interaction (HRI). The operators working with the
robotic prototype were interviewed three weeks after the deployment using
established UX narrative interview guidelines. Our results show that the
cooperation with a robot that executes predefined working steps actually
impedes the user in terms of flexibility and individual speed. This results in
a change of working routine for the operators, impacts the UX, and potentially
leads to a decrease in productivity. We present the results of the interviews
as well as first thoughts on technical solutions in order to enhance the
adaptivity and subsequently the UX of the human-robot cooperation.
