Can I safely use it to unlock achievements without getting a Ban/Restriction?

[Carlos-Sant-ana]

Well, I wanted to use it for those games that no longer have a server or the server is so precarious that there is no one left to play. Can I get a restriction/ban when using it or not? Well, I'm afraid to use it.

[gibbed]

I've not seen any evidence of any kind of punishments coming from Valve for using SAM in the time it has existed (10+ years).

Of course, I am not Valve. I cannot make any promises here.