Before I buy , I have some questions

I tried to find answers to my questions but I couldn't find any.

1. When was the last VAC detection?
2. Is the cheat currently working and undetected?
3. All features are undetected ? or for example pSilent aim is included but detected.
4. Once I pay for the cheat , how do I inject it? I need to boot my PC ? I need USB ? Or just download to desktop? should I exit steam?

Thank you very much.

1)one month ago
2)yes, it works
3)almost all features are undetected, except few antiaim options(we got a thread about it in VIP section)
Psilent isn't detected
4)you don't need anything special, just download ran and go