I installed this on two occasions for friends, it’s working, that isn’t the reason though I give 3 stars, reason is that this is just a reseller, you can get more channels for about a third of the price in China.
It’s illegal so you need to be behind a VPN, neither of those friends has a VPN.
Another problem is that it should be possible to pay by month for the same amount/12, reason, if authorities take this offline you’ll loose a maximum of 1 month sub instead of maximum a year.