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LastCheat is by far the best and cheapest provider you can get. 50$ monthly where you can customize many things by yourself (even a 2nd aim key and you see the observer names). I am using it since 2 weeks, started on a fresh new account. Now, I am lvl 46 and still not banned. If you are not raging and if you play legit this cheat is currently the best one. It gets updated fast, they have a friendly and helpful community and it's not hard to setup. There are no special dependencies needed.
Don't pay 60$+ monthly, it's not worth as long as LastCheat is not detected :D