Pretty decent and easy to use for a free VPN.

All you have to do is to install SetupVPN, Adblock, NoScript, a kind of WebRTC blocker, UA/timezone switcher and add to taste some other privacy add-ons. Oh and don't forget to register an account on developers web site... and don't forget firewall... and disable FoxyProxy, you can't use it with SetupVPN for some reason.

That's it! Now yo've got a brand new trash-IP! Enjoy your CAPCHA on every website and all your data being carefully analyzed by these FREE datacenters.

But hey, look at a bright side, as they say "SetupVPN comes with:

- UNLIMITED and 100% Free VPN server
- No bandwidth or speed limitations.
- 4096 bit military grade encryption

That means you'll have:

- Ping: 166 ms
- Download: 16.64 Mbps
- Upload: 12.65 Mbps
- "You have reached a daily limit" message every... 1 GB (not sure exactly)
- And this "4096 bit military grade encryption"... Didn't check how strong it really is, sorry.

Conclusion: This add-on was really stubborn at asking me to rate it, so here you go. You should be more honest guys. Unlimited bandwidth, free forever, military grade, blah-blah-blah you've got the point. Nothing is free. The price of SetupVPN is ironically your privacy. All your data are being processed and sold by data-center owners and your bandwidth is far away from "unlimited". But still SetupVPN is one of the easiest to use and most stable browser VPN addons.
The actual servers are not exclusive for SetupVPN, many developers use them to attract naive users to their shady fishing products by "FREEWARE" plate. But that statement not applicable to authors of this add-on. They like to embellish a thing or two, but still remain on a bright side of the Internet IMO. Let's hope this situation lasts.