Diane's Formal Affair is highly praised for providing a wonderful and stress-free experience in selecting special dresses. Customers appreciate the wide variety of gowns and the welcoming atmosphere. The staff, including consultants like Janice, Katherine, and Tara, are described as helpful, sweet, and easy-going, making clients feel listened to and never rushed. Many mention that they felt like princesses for the day and received helpful advice and suggestions. The store offers not only wedding and bridesmaids dresses but also prom dresses, with positive comments about the clean environment and excellent service. Alteration services are also highly recommended, with customers noting they did an amazing job. Overall, Diane's Formal Affair is seen as a top choice for brides, mothers of the bride, and prom-goers seeking a relaxed, friendly, and supportive shopping experience.