The customer service is excellent, they are always willing to go above and beyond to assist in any way that I need them too. They are very professional and knowledgeable about all aspects of information technology. Their support staff has been able to address my needs with many different types of products and services over our 10 year relationship. There have not even been one issues during this time frame. I highly recommend their services for companies looking into purchasing new or existing equipment and systems. We have utilized their expertise for several years now and continue to be pleased with everything we receive from Mark III's team.