Key positive aspects derived from customer feedback for iPrint and Design USA include exceptional service quality and a collaborative approach. Reviewers express a high level of satisfaction with the print quality – praising the vibrant colors, perfect trim, and material quality such as the special water-proof paper used for menus. Another salient feature mentioned is the company’s responsiveness and reliability, which seem to encompass both timely communication and the execution of print orders. The provision of additional services such as graphic design and professional consultations have also been noted as valuable components of their overall service offering. Regular customers underscore the consistency of the company's performance over time, which has fostered trust and contributed to customer loyalty.