Reno, Nevada based and I spend a ton of time behind the Great Firewall (in China). Was using vyprvpn until recently. Lots of connection issues to company mail servers back in the US using South Korea, Taiwan or Japan closest Vyprvpn servers. Switched to ipvanish which claims to have it's own servers vs using shared servers and happy as can be. Speed is really good. It might be pricey for some but the speed increase and the lack of connection issues was worth the cost vs the frustration factor.