[CS:GO] Questions before purchase

I have been an admirer of this hack for a some time now but I never had a paypal account, but now that I do, I have some questions:

Can I use the hack on my main account? I have many valuable items in my inventory and don't want to take a risk. I will try not to be obvious when using the hack so I will probably only use the visual hacks.

If I get VAC banned, what does that mean? Will I not be able to play ever again on that account?

When the hack gets detected, do I get automatically banned for having it on?

Vac bans are permanent and you can not trade the items on that account

This hack will not get detected it is safe it might in 100 years but not right now only use the trusted features though, and try not to be to obvious at all. http://aimware.net/forum/thread-438.html

oh and I wouldn't use it on your main account unless you know what you are doing and have used hacks before trust me.