iv seen alot of people saying stuff like "this hacks great, used it on VAC server and not banned" etc etc....
but people, you should be aware that you wont get banned straight away, it might be in a week or 2, or maybe when the update, the reason for this is that they ban alot of players at the same time thus leaving no time to warn people using the same hack.
so, people, use hacks at you own risk, although hacking is very fun my advice is, be 100% sure of the hack you using and dont assume that because your not banned instantly, your safe.