How reliable are Taobao and BMW's 4s online stores?

The subject wants to ask, "Is the online store of BMW 4s on Taobao reliable?" Reliable. Taobao is guaranteed by a platform, and the online store of BMW 4s is very reliable. Taobao is a large-scale online retail and business circle in the Asia-Pacific region, which was founded by Alibaba Group in May 2003.