What is a main benefit for selecting customer service as a logistics strategy?

Strategy is an important starting point for any element of business, and logistics is no different in this consideration. One strategy found with logistics is to focus on customer service; this discussion has you develop a deeper understanding of this strategy.

Please answer the following:

What is a main benefit for selecting customer service as a logistics strategy?
Are there any detractors to selecting customer service as a logistics strategy?
Find one real world example of a logistics company that puts customer service as their primary strategy. Reflect upon, and then discuss, your thoughts on their implementation of this strategy.
Make sure you are supporting your answers fully and that your source research is identified with citations and references.