Our Anti-PunkBuster is very safe.

Though, if you are worried about getting banned then you probably shouldn't be hacking in the first place.
Everybody that hacks will get banned at least once in their lifetime regardless of your hack provider.

You won't get detected if you are careful. The Killcam doesn't show anything and the majority of reports are ignored.
As long as you're aware of how to play with hacks, you're all set.