Service has improved recently. I went in one morning and was cashed out by a wonderful lady who I think was named Betty. She was very sweet and sociable. :) I haven't seen her in a while but I usually come in the evenings.
Besides her, I've noticed most of the other cashiers finally start to acknowledge and engage customers. It's not spectacular or particularly friendly service, but they at least say hello, tell me my total, and say good-bye. That's all I wanted!