So pretty no idea to use your service then :)
Hello mate! Saw you was from Sweden so tought i could give you some advice. You cant use it on Faceit AC at the moment but hopefully 3.0 will be realesed soon and to purchase it then you will need 3 months sub from before. 3 months is a good time to setup a really legit config to play on faceit with and get experience you need to look 100% legit. I dont say BUY BUY BUY but it good to have that on your mind, because it sounds like you want a secure faceit bypass and i guess the most safe you will find here. So when 3.0 is out you will need to sub 3 months before you can buy it, thats pretty good to know.
 
I dont know if that something matter for the future of new lc version but faceit are working on new better anticheat.
They can't really make much a better anticheat other than to do the ESEA level of cancer which is log and review everything, which is too time consuming for a dead service like FaceIT.