Our work as a designer is not just to design the interfaces or research problems, but also to communicate the meaning of that work. Feedback is the thing for which you explore different ideas, design beautiful interfaces, and make a lot of other design efforts, and if you are not good at listening to what other people have to say about all those efforts, then you are going to miss a lot of good feedback. On the initials day of working with that client, I remember I used to miss a lot of things in design, I did mistakes in the UIs, sometimes, I used to design something different than what was asked to.