Every anticheat plugin has good things and bad things. The advantage of a premium plugin is that the hack client maker must buy the plugin to make bypasses. Like if you have NoCheatPlus, some clients have specific hacks that bypass the checks of NCP. I use AAC now. There are some false positives but you can avoid that by editting the values in the config. I'm too lazzy to do that but it is on my todo list. The author of the plugin updates his plugin frequently but sometimes a response can keep on some days.