Not reliable. There is still a difference between selling goods in Aauto Quicker and Taobao, Pinduoduo, JD.COM and Vipshop, because Taobao, Pinduoduo and JD.COM all have quality assurance, and because many sellers in Aauto Quicker are second-hand backpackers who pick up goods in Huaqiang North, it is difficult to apply for after-sales service by deleting the purchase link. If you want to buy a mobile phone, you must go to a regular big platform, at least you can buy it with confidence. If you want a second-hand mobile phone platform, you can go around. At least the formalities are guaranteed.