Jos A. Bank is a business that provides tailored suits and formal wear to its customers. The reviews highlight the exceptional customer service and personalized attention that customers receive from the staff. Cathleen, Ana, Ethan, Avery, Rosie, Kathleen, and Anna are all praised for their professionalism, patience, and expertise in guiding customers through the selection and fitting process. Customers appreciate the staff's ability to understand their needs, recommend the best options, and ensure a seamless and satisfactory experience. The tailoring services are also highly regarded, with the in-house tailor receiving positive feedback. Overall, Jos A. Bank is described as a business that offers a great customer experience and high-quality formal wear.