I started with cpai and it did a decent job of filtering out the triggers from BI (that was set to trigger on evereything). It did eliminate most false triggers (rain, snow, wind, small animals, sun/shade changes) and alert me to people, cars, and animals (I fight the deer problem!)
Then when new firmware arrived (thanks Andy) that let IVS do the same work for the same cars, people, and animals, I stopped CPAI and let the built in IVS and Onvif handle alerts, and it does a great job, at way less of a lift than cpai. So now with BI v6 offering built in AI, I'm wondering if that will be something useful for my situation or not. I'm ok with the extra setup if it does more than the IVS does (not sure what that would be though!)