Before I became a staff member, when i mentioned this to people in the moderation team, they stood %100 behind the anti-cheat. While I have seen many people saying that they have been unfairly banned for hacking by the anti-cheat, I still trust that it is super effective. I remember going to the cleansweep and moderators saying that it was just too good and kept beating the moderators to bans.
Those stats are pretty good. XAC out does the staff team easily it's almost unfair. If you feel you were unfairly banned, please dispute it. Those who were banned unfairly will be unbanned if they dispute it. The amount of hackers it does catch, in my opinion, out weighs the few people that are unfairly banned.
Honestly, I think
boboy1999 is right, in order to prevent unfair bans, it should only be able to ban up to 1 week. However, the punishments stay the same. If a moderator catches you hacking, it is permanent as the ban table says. But the anti-cheat shouldn't be able to permenantly ban users.