Throughout this thread, I see a lot of solid reasons for a Chinese Expat in SV to give returning to China thoughtful consideration. That said, one hard negative moving from non-China into China is the availability of modern, standard-practice develop tools. Replicating the tools/DevEv within China is certainly possible, but requires effort and is often frustrating. VPN hot potato is getting more frequent & homegrown China DevEnv tools are often dramatically different from the tools common to non-China business.