When you would say that you have had an "excellent customer service"? what kind of service you are looking for?

Follow the customer after the sale

1- When a Customer service representative has great attitude, , knowledge and company provided tools to resolve the issue and you keep the customer engage with the conversation you re having and you let him/her feel that you re so good and your issue will be resolved swiftly.

2- All customers always look for confident, focused , and slick representative with great knowledge and have a divine smile. 

After Sales Customer Service, Electrical & Electronics Equipment