Yes, I had a positive experience too! I bought a tablet at an electronics store and after a week it started glitching. I came to complain and to my surprise they immediately offered to exchange it without any questions. This showed that they value their customers. It is important for companies not only to solve problems, but also to do it quickly and effectively. By the way, to better understand how companies can manage complaints, I recommend looking at
complaint management statistics - there is a lot of interesting data on how such approaches affect business.