We usually make it a point to compliment a store manager on how well their store operates. And we also do not hesitate to speak up on poor treatment.
We had a really bad experience at a national home improvement chain store. We contact the corporate headquarters, and by time it was all over we had the district manager calling us daily for like two weeks. She sent us a $100.00 gift card to spend which we thought was very nice, but we stressed to her we wanted nothing. She sent it as a gesture of good faith.
We will drive out of our way to patronize a store with excellent customer service and avoid those who don't.