AT&T Store in Iron Mountain offers a wide range of phones, tablets, smartwatches, and connected devices from top brands. They provide flexible prepaid phone plans with no annual contract or credit check, as well as popular unlimited data plans that include nationwide 5G service at no extra cost. Customers praise the exceptional service and assistance provided by the store's employees, particularly Tabby, Johnathan, Brock, and Steven. They are described as extremely helpful, patient, and knowledgeable, guiding customers through device setup, account management, and plan selection to ensure their needs are met. The store is recommended for its convenient location in Iron Mountain and the personalized attention given to each customer, making it a preferred choice for upgrading devices and maintaining wireless service.