They should mention something like this: that their service does not work in restricted countries. tried their service and does not work at all in my country! So i wasn't able to test it but because it doesn't work without they mentioning it, will give it a thumbs down!
I'm used to this service. I paid for a year. My subscription expires in April 2019 but it is already 3 months that it no longer works (now we are in September 2018). They do not respond to emails and there is no support service. It does not seem serious to cash in a year in advance and offer the service only 5 months. My advice is not to subscribe to any annual or multi-year plan but only monthly so that if what they promise fails you are free to change without forgetting a lot of money. Thieves!
There are lots of VPN solutions out there but I am using Steganos' software as it was the most easy to setup and use and it has been great using it on a daily basis. It might not offer as many countries as others but those which I needed were available in the software with a fast and reliable connection.