3 stars because of the good and the bad.

The Good - It works fine for me, I only use it now and then to get around geographic bans. I don't use a lot of bandwidth and I don't do anything nefarious. For these purposes it has always worked ok. Once in a while I get a slow vpn but disconnecting and reconnecting seems to get me a better one. It's convenient and I don't care about my real IP leaking very often. (I suspect it sometimes does and sometimes does not.)

The Bad - I need a server in ae to access a students course materials there. I paid to upgrade for a week and had that choice for an ae vpn and it worked ok. They gave an auth code and emphasized to write it down so I did. The upgrade only worked until I logged out, now I can not log in with the code and only have the free access. Support could not find my order and after telling me that has not been responsive.

For light limited use I give it a good score. For upgrading I do not. My recommendation for upgrading is to never buy more than the smallest 1 week amount. You are very likely to have to go pay again when your first upgrade stops working.

“ Authentication failed. Please check your credentials.”is displayed when you log in to the QQ mailbox, how can I solve the problem??

I want to connect to South Korea using residential, but there is currently no way?

总的来说还是不错的(但是服务器出问题时没有及时通知，让用户sad）

4-25-22: It's ok, probably spyware (they all are). Found a MUCH better free vpn but I cannot tell you here which one it is to avoid overcrowding. But they are out there if you look carefully. This one is probably run by same outfit as Hoxx vpn, similar guid and Ips. Be careful with sites iding your home ip through webrtc-always check this first. I think it's a bit better than hoxx which tends to be buggy and slow. Sites have other ways of iding and profiling you, they co not just go by ip and browser any longer.
UPDATE 9-29-21: RUN BY SAME OUTFIT AS HOXX. DOES NOT WORK ON FFORX LATEST, WILL NOT CONNECT PERIOD. STALLS.
UPDATE 7-14-21: DOES NOT WORK ON FFOX 89+, WILL NOT CONNECT TO ANY PROXY. NO ERROR GIVEN. WORKS ON EARLIER FFOX VERSIONS AND THEY GOT RID OF ALL THE PERSONAL QUESTIONS. THIS IS HOXX VPN UNDER ANOTHER NAME
fake vpn, a copy cat same gui as hoxx vpn. Asks a bunch of personal questions to "register" including email address. Then deletes your account when you don't give them all the info they ask about you. No notice, no warning. Nothing. Has like 2-3 free servers, rest require payment. Slow as molasses. Don't waste ur time.