For a free VPN, it's amazing! It's got the fastest speed I've seen in free VPN's. Being open-source is a plus, as many other free programs that are closed-source would perform unknown, questionable functions.

It unblocks websites which are blocked in china and the best part is it is free. Plus as far as i have seen there is no DNS leak. Sometimes it gives a very fast speed. Like my internet here is 50Mbps, using psiphon, not always but most of the time, i get 12 to 15 Mbps, which is good enough for me. Just you need to try with different available servers.

Personally i like this VPN. It was my first and best used vpn from my college days, and it has new and best unique features. when I was in college in my college only gave me restricted net browsing,I start searching on how to access unrestricted websites from my college then i found one website "psiphoniphone" and read about this Psiphon vpn I downloaded and used it, and it was really good and best vpn in my case. Thank you Psiphon VPN to solve my internet access problems.