Reliable. According to Sohu News, Sister Martha 1380 Group Buying Talent is an online shopping method, which can help consumers buy goods at lower prices. Merchants who participate in group buying will offer lower prices, and consumers can enjoy more benefits, such as free delivery and free gifts. The process of participating in group buying is also very simple. Just log in to Martha's sister official website, search for merchants, select goods, follow the prompts to complete the purchase process, and finally wait for the delivery of the merchants.