Compared to OpenVPN in mainland China, it is still very reliable. Because OpenVPN has been fully recognized by the Chinese firewall, as long as the connection overseas will definitely be blocked or limited, the effect of circumventing the firewall is very poor. But SSR and V2ray's own traffic obfuscation is still very effective for circumventing the firewall. And now most of the servers that provide effective circumvention are using Shadowsocks, SSR, or V2ray, and this user group is very large.