I've been using this anti-censorship software for about 2 or 3 years. It's the most stable one of all anti-censorship softwares I've ever used. For those who's not in China mainland, you can not imagine how many breaking-wall softwares we've ever used.From ssh -D,pptp,L2tp/ipsec,to OpenVpn. In order to access twitter,someone even create twitter api proxy such as Twip,btw,the creator was ever forced to "drink tea" with the police ,too. The Chinese gov just blocks any sites they want and frighten anyone who is "troublemaker". Best wishes for the gov,and for the heroes who is creative and brave to develop all these anti-censorship softwares.