"Official Band Shirts" is an online store that sells licensed rock music t-shirts and band merchandise. However, customer reviews suggest mixed experiences. Some customers have expressed dissatisfaction with the quality of the merchandise, shipping delays, and customer service. There are also complaints about orders being partially shipped and lack of response from the company. On the other hand, some customers have reported satisfaction with their orders, although they noted that shirt sizes may vary and additional duty charges may apply for Canadian customers. It's recommended to read reviews and understand the company's policies before making a purchase.