For me, It worked wonderfully to unblock websites and to hide my data. For a free VPN, I absolutely loved it! I even tried to track my data, but it didn't work! I would highly recommend this. The only problem is that each time it connects, it forces you to quickly visit the sponsor page.

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.